The chess-board is the world, the pieces are the phenomena of the universe, the rules of the game are what we call the laws of Nature, the players on the other side is hidden from us.
/ Thomas Henry Huxley /



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.


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NGC 3813 (Galaxy)
Right ascension: 11h 42m Declination: 36° 28'
Constellation: Ursa Major
Date/time: 2015.04.10 21:45 UT
Equipment: 12" f/5 Newtonian
FoV: 13' Magnification and filter(s): 250x
Seeing: 7/10 Transparency: 3/5
SQM: 21.10 m/as2 Temperature: 6°C
Humidity: moderate
Sight: 3 - definite details, interesting look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 4 - hard, complex starhopping needed
Location: Talpa Minor Observatory
Observer: Ferenc Lovró
Description:

E-W elongated elliptic galaxy appears in a nearly edge-on angle. Not particularly faint, with a homogeneous surface. Many faint stars appear around the body of the galaxy especially around its long axis, adding much to the looks of the FoV.
Hi-resolution image: [ reversed sketch | original sketch ]
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