My amateur interest in astronomy brought out the term 'magnitude,' which is used for the brightness of a star.
/ Charles Francis Richter /



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.


Show me the newest sketches!
By type: open clusters [67] globular clusters [14] diffuse nebulae [3] dark nebulae [0] planetary nebulae [27] variable stars [18] binary stars [23] asterisms [2] galaxies [119] quasars [1] planets [2] minor planets [1] comets [5] Sun [0] Moon [5] other objects [8]
By catalogue: Messier 1-50 [20] Messier 51-110 [18] NGC 1-1000 [17] NGC 1001-2000 [21] NGC 2001-3000 [32] NGC 3001-4000 [25] NGC 4001-5000 [18] NGC 5001-6000 [22] NGC 6001-7000 [40] NGC 7001-7840 [35] IC 1-5386 [1] other catalogues [71] uncataloged [10] [25]
By constellation:



NGC 1513 (Open cluster)
Right ascension: 4h 10m Declination: 49° 31'
Constellation: Perseus
Date/time: 2008.02.11 19:40 UT
Equipment: 12" f/5 Newtonian
FoV: 18' Magnification and filter(s): 167x
Seeing: 3/10 Transparency: 3/5
Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Description:

First I wasn't even sure that I'm sketching the right object, this open cluster looked so insignificant to me for the first look, but after looking up images in a internet database about it, it became clear, that my time wasn't just wasted and I sketced the right thing. Around halfway between lambda and mu Per, a handful of stars, that can hardly be called bright, make up this cluster. On a magnification of 71x it looks as if there were two rings of stars that are bound to eachother. On 167x an almost regular hexagon is the most notable part of the cluster, made up of six stars of similar luminosity and colour, of magnitudes 12-13. Although not too spectacular, because of its easy location it might worth to search and take a look at it.


Hi-resolution image: [ reversed sketch | original sketch ]
Sign in

Username:
Password:



Articles

About me
My equipment

DIY - Cheshire Eyepiece
DIY - Apodizing mask

Messier Marathon 2013 Tavasz [magyarul]
Messier Marathon 2015 Tavasz [PDF]NEW!


Advertisement


All text and images are ©opyright of Ferenc Lovró. All rights reserved worldwide.

[2254511]