Sketches
Featured sketch C/2022 E3 ZTF
Click to enlarge
All the sketches except Comet Hale-Bopp were made using 18" F4.5 Dobsonian
telescope. I drew the objects in a pencil on white paper and input them to
PC by a scanner. For some sketches white and black were reversed
electronically. North is up if the direction is not shown.
In some sketches not all the visible stars are drawn.
Comets
9P/Tempel
17P/Holmes
153P
Ikeya-Zhang
P/2010 V1
Ikeya-murakami
C/1995 O1
Hale-Bopp
C/2000 WM1
LINEAR
C/2001 Q4 NEAT
C/2002 E2
Snyder-Murakami
C/2004 Q2
Machholz
C/2007 W1
Boattini
C/2013 R1
Lovejoy
C/2021 A1 Leonard 
C/2022 E3 ZTF
Deep sky objects
IC434, B33
M17
M33 (NGC598)
M74 (NGC628)
M77
(NGC1068)
NGC55
NGC194 NGC246
NGC253
NGC891
NGC1360
NGC1365
NGC1406
NGC2903
NGC3190
NGC3395-96 NGC4038-39 NGC7793