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 7332 + NGC 7339 (Galaxy)
Right ascension: 22h 37m Declination: 23° 48'
Constellation: Pegasus
Date/time: 2008.10.01 23:45 UT
Equipment: 12" f/5 Newtonian
FoV: 18' Magnification and filter(s): 250x
Seeing: 6/10 Transparency: 4/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

Two spectacular galaxies of similar size but different look, in a nice pattern, about perpendicular to eachother. NGC 7332 is a bit larger and much brighter, however visually I've seen it slightly smaller than its fainter companion. A reason for this might be its starlike, bright core, that is washing away the dimmer areas, and to which I estimate a brightness of about 12.7m. The galaxy is losing brightness smoothly toward its outer boundaries. NGC 7339 however does not have a starlike core, its surface looks perfectly homogeneous, it's has a shape of a cigar: faint and highly elongated. It has sharp edges. I estimate a surface brightness of 13.2m. Their sizes are: 0.5' x 1.5' for NGC 7332, which is much smaller than what is stated in the catalogue (1.1' x 4.1'!), and 0.5' x 2.3' for NGC 7339. The photos I've seen make me certain that I'm right by the size estimation, because on these the galaxy pair looks quite the same by size.


Hi-resolution image: [ reversed sketch | original sketch ]
This sketch was featured on Astronomy Sketch of the Day on Dec 26, 2008.
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