The history of astronomy is a history of receding horizons.
/ Edwin Powell Hubble /



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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Struve 2280 (Binary star)
Also known as: 100 Herculis, 100 Her
Right ascension: 18h 8m Declination: 26° 6'
Constellation: Hercules
Date/time: 2009.09.05 19:00 UT
Equipment: 12" f/5 Newtonian
FoV: 14' Magnification and filter(s): 167x
Seeing: 5/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Wide pair, nearly identical in colour and brightness, although the component A looks a little bit brighter. They are both a little bit bluish, sometimes I even detect a little orange in component B. A: 5.9m, B: 6.0m, A-B: 14", PA: 183°.
Hi-resolution image: [ reversed sketch | original sketch ]
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