There are 10^11 stars in the galaxy. That used to be a huge number. But it's only a hundred billion. It's less than the national deficit! We used to call them astronomical numbers. Now we should call them economical numbers.
/ Richard Feynman /



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 2161 (Binary star)
Also known as: rho Her
Right ascension: 17h 24m Declination: 39° 9'
Constellation: Hercules
Date/time: 2009.09.05 18:30 UT
Equipment: 12" f/5 Newtonian
FoV: 21' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

The component A is estimated at 4.6m with white colour, component B at 5.5m and looks like it has a touch of blue in it. At 71x they are only separated if the seeing permits. At 167x they are perfectly separated, B looks definitely fainter. Separation is estimated at 4.1" with a position angle (PA) of 315°.
Hi-resolution image: [ reversed sketch | original sketch ]
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