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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Ras Algethi (TVICS)
Also known as: Rasalgethi, Alpha Herculis
Right ascension: 17h 15m Declination: 14° 23'
Constellation: Hercules
Date/time: 2013.07.01 22:10 UT
Equipment: 12" f/5 Newtonian
FoV: ' Magnification and filter(s): 250x
Seeing: 3/10 Transparency: 4/5
SQM: 21.34 m/as2 Temperature: 12°C
Humidity: moderate Wind: none
Sight: 3 - definite details, interesting look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 1 - very easy, many bright stars nearby
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

A close colour contrasting binary. The B component wasn't easy to see as the bad seeing made the bright A component dancing in the FoV, hiding the close companion star. The main component is bright golden coloured, while its companion is much fainter white with bluish hue. Nice but difficult binary.
Hi-resolution image: [ reversed sketch | original sketch ]
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