M 3 CG clase VI en CVn. Mag. 6.3, size 18 arcmin
T350, 200x. Bortle 5 (cielo suburbano), SQM 20.99.
8.5.2021, Cenicientos, Pedro Villamiel.
Black paper, light gray pastel pencil for the stars and white pastel pencil for the background. Drawing made on the field sketch. scanning without any digital retouching added.
The first thing is to clarify the title. The image in the eyepiece of M3 is the one seen in the drawing, but in reality M 3 is twice as big, what happens is that due to the quality of the sky and the equipment we use we will perceive the size of the object and in this case the angular size of M 3 in the drawing is about 9 arcmin, when in reality its angular size is about 18 arcmin. For this reason I thought it appropriate to call it "central zone" to give it a more realistic context.
Field notes: This CG is very very bright, very very large, round and very rich in stars, almost all of similar brightness, apart from the unresolved ones. Its heart is broad and round with a brightness that drops almost suddenly to a gradually dissolving halo. The main characteristic of M 3 is that it does not have very striking features such as chains of stars or more or less bright areas that break the roundness that appears from the first glance.
The second thing is to take the opportunity to tell you that I have made a wed page in which I have already put almost all my recent drawings, including this one and where you can find more information and data about this drawing of M3 and the others.
This is the link to the wed page:
Edited by pedrovillamiel, 15 May 2021 - 01:45 PM.