Those who study the stars have God for a teacher.
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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.


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


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Struve 2727 (Binary star)
Also known as: gamma Delphini, gamma Del
Right ascension: 20h 47m Declination: 16° 7'
Constellation: Delphinus
Date/time: 2009.09.06 19:45 UT
Equipment: 12" f/5 Newtonian
FoV: 15' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

A rather standard pair with different colour and brightness. The catalogues list only 1 magnitude difference in that, but actually it looks much more to me. The fainter component is a bit pastel greenish. A: 4.5m, gold colour, B: 5.4m, green. A-B: 9.2", PA: 270°.
Hi-resolution image: [ reversed sketch | original sketch ]
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