Finally we shall place the Sun himself at the center of the Universe. All this is suggested by the system of procession of events and the harmony of the whole Universe, if only we face the facts, as they say, "with eyes wide open."
/ Nicolaus Copernicus /



In memoriam Halton C. Arp (1927-2013).


My astronomy sketches. Hover mouse over image for the inverted look. For fainter objects, take a look at the black-on-white original, sometimes it reveals more details.


Need advice? Want to discuss an observation? Feel free to contact me at flovro gmail*com.

ÚJ! Amennyiben elérhető, a ikonra kattintva magyarul is olvashatod az észlelést.


Show me the newest sketches!
By type: open clusters [67] globular clusters [14] diffuse nebulae [3] dark nebulae [0] planetary nebulae [27] variable stars [18] binary stars [23] asterisms [2] galaxies [119] quasars [1] planets [2] minor planets [1] comets [5] Sun [0] Moon [5] other objects [8]
By catalogue: Messier 1-50 [20] Messier 51-110 [18] NGC 1-1000 [17] NGC 1001-2000 [21] NGC 2001-3000 [32] NGC 3001-4000 [25] NGC 4001-5000 [18] NGC 5001-6000 [22] NGC 6001-7000 [40] NGC 7001-7840 [35] IC 1-5386 [1] other catalogues [71] uncataloged [10] [25]
By constellation:



M51 + NGC 5195 (Galaxy)
Also known as: NGC 5194 + NGC 5195
Right ascension: 13h 30m Declination: 47° 14'
Constellation: Canes Venatici
Date/time: 2008.04.27 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 50' Magnification and filter(s): 71x
Seeing: 6/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The spiral galaxy of M51, better known as the Whirlpool-galaxy is one of the most famous Messier objects. Thanks to its position and high luminosity, it's a very easy and impressive target. The spiral arms of M51 look beautiful and sharp, and with a little patience you can see even the bridge of matter between it and its interacting companion (NGC 5195), also with direct vision.


Hi-resolution image: [ reversed sketch | original sketch ]

M51 + SN 2011dh (Galaxy)
Also known as: Whirlpool galaxy
Right ascension: 13h 30m Declination: 47° 8'
Constellation: Ursa Major
Date/time: 2011.06.21 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 25' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Today was the Summer solstice, so it's not surprising that even at 11pm the Western horizon is still shining in bluish colour, however at East the hazy patch of the Summer Milkyway is already easily noticeable. The spiral structure of the M51 is readily visible at 71x, surprisingly easy and so is the supernova SN2011dh, which I estimate to be at 12.3m and is located in the middle of a large outer spiral arm towards ESE from the galactic core. At such a high brightness this supernova is possibly one of the brightest for this year, at a very easy position for Northern hemisphere observers also with much smaller scopes.


Hi-resolution image: [ reversed sketch | original sketch ]

M52 + OCL261 (Open cluster)
Also known as: NGC 7654 + Czernik 43 (Cz 43)
Right ascension: 23h 24m Declination: 61° 35'
Constellation: Cassiopeia
Date/time: 2008.01.24 18:00 UT
Equipment: 12" f/5 Newtonian
FoV: 40' Magnification and filter(s): 71x
Seeing: 5/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

These two star clusters can be found easily nearby the constellation Cassiopeia. The Messier object M52 is a quite large open cluster with clearly identifiable boundaries and has a diameter of at least 20'. Its image is determined by a very bright star, however the cluster itself looks quite rich, even though the brightness of other stars is not even close to their brightest companion. To the east from M52, behind a wall of shiny stars lies the open cluster OCL261 (also known as Czernik 43), populated with a dozen dim stars.


Hi-resolution image: [ reversed sketch | original sketch ]

M53 (Globular cluster)
Also known as: NGC 5024
Right ascension: 13h 13m Declination: 18° 10'
Constellation: Coma Berenices
Date/time: 2008.03.31 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 20' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

This globular cluster is really breathtaking. More than a dozen of stars can be separated also with direct vision. By using averted vision, this number jumps to several dozens. It is not really getting denser towards the centre, although what we see is actually the core already: the real diametre of the cluster is actually 21', yet the half of its gross weight stays inside a circle of 1.1'.


Hi-resolution image: [ reversed sketch | original sketch ]

M57 (Planetary nebula)
Also known as: Ring nebula, NGC 6720
Right ascension: 18h 54m Declination: 33° 2'
Constellation: Lyra
Date/time: 2008.06.10 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 14' Magnification and filter(s): 250x
Seeing: 7/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The famous Ring nebula of the Lyra constellation is well-known even for people less obsessed with astronomy. An interesting fact is that its visual surface brightness is about half magnitude better than its photographic surface brightness thanks to the elements that build up its spectra, therefore it's worth taking a look of this shiny planetary nebula with any kind of telescope. Its position is very easy: you can hardly miss it on the line connecting the stars beta and gamma Lyrae. Its central star (14.7m) was barely detectable for me if at all, even with averted vision. I think it demands darker skies. The UHC filter did not help much on the view, but large magnification is really neccessary.


Hi-resolution image: [ reversed sketch | original sketch ]

M64 (Galaxy)
Also known as: Black Eye Galaxy
Right ascension: 12h 57m Declination: 21° 37'
Constellation: Coma Berenices
Date/time: 2012.04.26 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: 36' Magnification and filter(s): 100x
Seeing: 4/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The well known M64 or Black Eye Galaxy (sometimes mentioned as Black Eye Nebula) is a fine specimen of large and bright Messier galaxies (although Charles Messier didn't know what galaxies were). It has a tiny star-like central core with a noticeable bulge around it, and a thin dark patch of dust lane to the NE of the core. This feature is not easily visible. On the major axis of the ellipse I can detect signs of spiral arms on both sides of the core.

SQM reading: 21.44 m/arcsec2, 6°C, light wind.


Hi-resolution image: [ reversed sketch | original sketch ]

M65 + M66 + NGC 3628 (Galaxy)
Also known as: Leo trio, NGC 3623 + NGC 3627 + NGC 3628
Right ascension: 11h 19m Declination: 13° 15'
Constellation: Leo
Date/time: 2008.03.31 20:30 UT
Equipment: 12" f/5 Newtonian
FoV: 50' Magnification and filter(s): 45x
Seeing: 6/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

This triplet of galaxies always make me smile: I'm calling it a "dumb face" cluster. The M65-66 double is a classic, easy Messier-object: both can be well seen - perhaps the latter having a brighter, almost star-like core region. It's not clear for me why the NGC 3628 was left out of Messier's catalogue: it's not at all a difficult object either. Its brightness is quite close to that of M65 and while wandering around looking for its more famous companions, you may most probably bump into this one also.


Hi-resolution image: [ reversed sketch | original sketch ]

M67 (Open cluster)
Also known as: NGC 2862
Right ascension: 8h 50m Declination: 11° 49'
Constellation: Cancer
Date/time: 2008.03.30 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 24' Magnification and filter(s): 71x
Seeing: 7/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The second largest open cluster of the constellation Cancer, right after the M44, which can also be seen with naked-eyes even under suburban skies. On a power of 71x, it fills the neary half degree field of vision. It was easily found: even the 8x50 finderscope displays it as a shiny little blur. The M67 is a nice, dense open cluster, with a members of high variety of brightness: there are about a dozen dominant stars of the 12th magnitude, but in the backround you can easily detect stars of 13-14m. The entire population visible to me were at least 100 stars, however the background looks really diffuse, so I assume there must be plenty of even dimmer stars in this cluster.


Hi-resolution image: [ reversed sketch | original sketch ]

M81 + M82 (Galaxy)
Also known as: NGC 3031 + NGC 3034
Right ascension: 9h 56m Declination: 69° 20'
Constellation: Ursa Major
Date/time: 2008.03.30 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: 52' Magnification and filter(s): 45x
Seeing: 5/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The famous double galaxy of Ursa Maior is an easy target with any kind of telescope. The brighter M81 spiralgalaxy can be detected even in the finderscope. Its smaller and fainter companion, the irregular M82 is interesting especially when looking at larger magnification levels, with several clearly detectable dense areas. Looks best when having a FoV of at least 1°, as in that case both of the galaxies can be fit into one picture. The nearby NGC 3077 is also worth a look, although it's even smaller and fainter than the M82.


Hi-resolution image: [ reversed sketch | original sketch ]

M82 (Galaxy)
Also known as: Cigar galaxy
Right ascension: 9h 57m Declination: 69° 38'
Constellation: Ursa Major
Date/time: 2011.05.26 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: 11' Magnification and filter(s): 300x
Seeing: 9/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

A surprisingly excellent seeing calls for a high-magnification study. As Saturn is just below my horizon, I decide to pick a rather complicated structure: the irregular Cigar galaxy of the UMa constellation. Thanks to the 300x power, the FoV is coal black, the galaxy is so bright that it actually ruins my dark adaptation, faint stars sparkling at the edge of averted vision visibility. Too bad, that the galaxy itself is located on a rather light polluted part of my sky, but it still shows plenty of structures. During the observation, I had my second magneto-acoustic meteor experience in my life: this is the phenomenon when you actually hear a swishing or crackling sound at the same time the meteor flares in the atmosphere. The common part in both cases were that I was standing VERY close to a wire mesh fence, and a <0 mag meteor in the zenith, with a definite ionized tail.


Hi-resolution image: [ reversed sketch | original sketch ]

M82 + SN 2014J (Galaxy)
Also known as: Cigar galaxy
Right ascension: h m Declination: ° '
Constellation: Ursa Major
Date/time: 2014.01.23 17:30 UT
Equipment: 12" f/5 Newtonian
FoV: ' Magnification and filter(s): 167xx
Seeing: 3/10 Transparency: 2/5
SQM: 19.94 m/as2
Humidity: moderate Wind: breeze
Sight: 4 - lots of details, very interesting, unique look
Difficulty: 2 - easily visible, some dark adaptation needed, averted vision might add to details
Position: 2 - easy, bright star nearby
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

On 2014.01.22 Fossey et al. discovered this possible supernova in the famous M82 irregular galaxy. Surprisingly the discovery were made at a visual magnitude of about 11.7m, which is quite bright, and especially weird that in such a well-known galaxy a supernova can remain undiscovered for so long (days actually, within the range of a 12" telescope visually). I believe that the reason might be that on long exposure photographs the SN is not so different than the little bright knots in the GX, and probably many algorithms missed identifying the exploded star.

So, despite the fact that the satellite images shown 100% cloud coverage, I decided to believe to my own eyes and not satellites, and went out to check the sky condition. To my surprise, the sky was clear! There was a nice little hole in the clouds above me, hooray!

Although the GX was in a bad position for me - just half a degree above our roof, and right in the middle of the light pollution of a nearby lamp and the smoke out of our chimney - I could catch both the GX and its SN very easily. I've estimated the SN at a visual magniture of 11.4m, which is about 0.1-0.2m lower than actual measured brightness around that time.

The conclusion behind this supernova is that there is still a good chance to beat robots and algorithms and discover a supernova visually! Just imagine how many observers around the globe have seen this supernova without realizing that they have discovered something new.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4459 + NGC 4477 + NGC 4479 + NGC 4473 + NGC 4458 + NGC 4461 + NGC 4435 + NGC 4438 (Galaxy)
Also known as: Markarian's Chain
Right ascension: 12h 28m Declination: 13° 1'
Constellation: Virgo
Date/time: 2012.04.25 22:00 UT
Equipment: 12" f/5 Newtonian
FoV: ' Magnification and filter(s): 71x
Seeing: 6/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Almost all members of this spectacular cluster of galaxies is fairly bright, except maybe for NGC 4479 and NGC 4402. The Messier galaxies are especially bright: M84 and M86. The galaxy NGC 4435 has a star-like core and NGC 4438 is remarkably peculiar shaped. The image is a mosaic of multiple FoV's, with a total coverage of about 1x1.5 degrees. The galaxies from left to right are: NGC 4479, NGC 4477, NGC 4473, NGC 4459, NGC 4461, NGC 4458, NGC 4435, NGC 4438, NGC 4425, NGC 4402, M86, NGC 4387, NGC 4388, M84.

SQM reading: 21.32 m/arcsec2, 7°C, light wind.


Hi-resolution image: [ reversed sketch | original sketch ]

M92 (Globular cluster)
Also known as: NGC 6341
Right ascension: 17h 17m Declination: 43° 8'
Constellation: Hercules
Date/time: 2008.05.29 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 50' Magnification and filter(s): 71x
Seeing: 5/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

A rather neglected globular in Hercules. I wonder why it is treated like this compared to M13, as it is very bright and spectacular, although its visible diameter is only about half of the more famous companion. Its core area even looks brighter than that of the M13, it looks less homogeneous. It behaves fine at higher powers, at 167x it looks perfectly split.


Hi-resolution image: [ reversed sketch | original sketch ]

M93 (Open cluster)
Right ascension: 7h 45m Declination: -2° 53'
Constellation: Puppis
Date/time: 2013.03.02 19:15 UT
Equipment: 4.5" f=8 Newtonian
FoV: 37' Magnification and filter(s): 100x
Seeing: 6/10 Transparency: 4/5
SQM: 21.32 m/as2 Temperature: -4°C
Humidity: low Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 3 - moderate, some starhopping needed
Location: Lipótfa, Zselic, Hungary
Observer: Ferenc Lovró
Description:

Small, compact open cluster, mostly made of faint stars. If I turn off my observers torch, the FoV is full of fainter stars - not a surprise as the Milky Way creates the background for this object.


Hi-resolution image: [ reversed sketch | original sketch ]

M97 (Planetary nebula)
Also known as: Owl nebula, NGC 3587
Right ascension: 11h 15m Declination: 55° 1'
Constellation: Ursa Major
Date/time: 2008.04.24 20:30 UT
Equipment: 12" f/5 Newtonian
FoV: 20' Magnification and filter(s): 167x + UHC filter(s)
Seeing: 3/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The M97, also known as the Owl-nebula is a very spectacular, famous planetary, in the vicinity of M108. It's a nearly regular circle, slightly elongated in E-W directions. Also on the Eastern and Western corner one can find two darker spots, the eyes of the owl. The planetary itself is quite an easy object, looks much brighter than the 11m as listed in catalogues, a homogenous shape with sharply fading edges. Discovering the eyes is a bit harder: especially the Western spot is tend to blink. Using your averted vision helps a lot to see the details. I was using my Baader UHC filter to finish this sketch, however according to my experiences a slightly better seeing helps much more than the filter.


Hi-resolution image: [ reversed sketch | original sketch ]

M103 (Open cluster)
Also known as: NGC 581
Right ascension: 1h 33m Declination: 60° 42'
Constellation: Cassiopeia
Date/time: 2008.02.19 20:00 UT
Equipment: 12" f/5 Newtonian
FoV: 27' Magnification and filter(s): 71x
Seeing: 6/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

On a night with a near fullmoon, when planetary nebulaes and galaxies are an impossible mission, brighter open clusters such as the M103 are still sparkling vividly in the eyepiece. The OC that's 6' in diameter can be located near the Delta Cas, especially spectacular on low magnification. In its neighborhood one may find such other interesting clusters like the Trumpler 1, the NGC 663 or the NGC 659, all of which worth a look even from light-polluted places.


Hi-resolution image: [ reversed sketch | original sketch ]

M106 + NGC 4248 (Galaxy)
Also known as: NGC 4258 + NGC 4248
Right ascension: 12h 19m Declination: 47° 18'
Constellation: Canes Venatici
Date/time: 2008.05.02 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 45' Magnification and filter(s): 71x
Seeing: 4/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Large, spectacular spiral galaxy with a gross magnitude of 8.4, two magnificent arms and a very shiny core. Elongated towards N-S, which is also the direction of the two arms. The Southern arm looks brighter, while the Northern one larger and blurred. Only a quarter degrees away you can find its easily detectable companion, the NGC 4248 (12.5m). If you can see this tiny galaxy, you should take the chance to look around the M106 in a radius of 1-2 degrees, and observe the other members of the galaxy-group named after it. Around half a dozen of the smaller galaxies are brighter than 4248, and only a couple are similar or fainter.


Hi-resolution image: [ reversed sketch | original sketch ]

M108 (Galaxy)
Also known as: NGC 3556
Right ascension: 11h 11m Declination: 55° 40'
Constellation: Ursa Major
Date/time: 2008.04.24 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 45' Magnification and filter(s): 71x
Seeing: 3/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Shiny, elongated galaxy near the famous Owl-nebula. Its core looks almost like a star, I estimate a brightness of around 12m. More dense parts are visible, the most notable is the very shiny area towards the Western end of the galaxy.


Hi-resolution image: [ reversed sketch | original sketch ]
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