From now on, we live in a world where man has walked on the moon. It wasn't a miracle, we just decided to go.
/ Jim Lovell /



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 559 (Open cluster)
Right ascension: 01h 31m Declination: 63° 24'
Constellation: Cassiopeia
Date/time: 2017.10.17 20:20 UT
Equipment: 12" f/5 Newtonian
FoV: 14' Magnification and filter(s): 250x
Seeing: 6/10 Transparency: 2/5
SQM: 20.71 m/as2 Temperature: 10°C
Humidity: high 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: 2 - easy, bright star nearby
Location: Talpa Minor Observatory
Observer: Ferenc Lovró
Description:

This loose, compact cluster is populated by very faint stars. In the middle a brighter triangle can be seen surrounded by about two dozens of fainter members. At 71x it separates better from its environment that is surprisingly poor in stars, however I need to push the magnification to resolve the faint cluster members. The high humidity makes the sky background very bright, I suspect a much better view if the conditions are great.


Hi-resolution image: [ reversed sketch | original sketch ]
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All text and images are ©opyright of Ferenc Lovró. All rights reserved worldwide.

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