With every passing hour our solar system comes forty-three thousand miles closer to globular cluster 13 in the constellation Hercules, and still there are some misfits who continue to insist that there is no such thing as progress.
/ Ransom K. Ferm /



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 4100 (Galaxy)
Right ascension: 12h 07m Declination: 49° 30'
Constellation: Ursa Major
Date/time: 2014.05.23 22:30 UT
Equipment: 12" f/5 Newtonian
FoV: 25' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5
SQM: 21.11 m/as2 Temperature: 13°C
Humidity: dry Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
Position: 3 - moderate, some starhopping needed
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Faint galaxy with a N-S elongation and a very nice oval shape that's no too flat, but looks a bit like a cigar. Its Northern side appears a bit brighter. Situated in a nice stellar neighborhood.


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