Comet
Atlas C/2019 N1

Object :	Comet, Atlas C/2019 N1
Coordinates/Direction :	Northern Sky
Object size :	- km
Orbital period :	- years
Perihelion :	- AU, shortest distance to Sun
Apparent magnitude :	~12, peak, in Lupus, December 2020
Mass :	- kg
Discovered by :	Asteroid Terrestrial-Impact Last Alert System, July 2019
More to know :	More info at Seiichi Yoshida's homepage: http://www.aerith.net/ comet/ catalog/ 2019N1/ 2019N1.html

Comet's light curve:

Credit: software 'Comet for Windows' from Seiichi Yoshida

The magnitude of the comet around the days I photographed it.

Comet Atlas C/2019 N1 2020-02-18:

Date :	2020-02-18
Time (UT) :	23:36 to 23:58

Mount :

SkyWatcher EQ6 Pro, Beltdrive (DIY 2019)

Guide :

QHY5 camera with 400 mm f/6.3 lens

Lens/telescope :	TS130 APO f/7 910mm, 3" focuser
Corrector/Barlow :	3" field flatter, 1.0x
Field (FOV) :	2.25 x 1.5^o (full frame) before crop

camera :	Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature:	About 6^o C above surrounding temperature
Film/CCD :	Raw, Cr2
Filter :	none

Control system :

Mount by EQMOD, camera by APT, guide by PHD2, focuser by USB-focus, ASCOM Windows PC

Exp. time :	36x60 seconds at ISO1600
Image process tool :	Siril, Gimp, IrfanView.
Processing :	Dark, Flat calibrated, increased contrast

Site :

Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20^o to 90^o, 165^o to 185^o, Alt: 20^o to 55^o

Comment :

One more weak comet in my old archives, this is the Atlas C/2019 N1, it had magnitude16 when photographing it. I took help from this site to find it: In The Sky. It doesn't match the position exact but good enough for me to find it.

Crop around the comet:

Date :	2020-02-18
Time (UT) :	22:20 to 23:07
Processing :	Crop around the position where the comet should be and the contrast is increased a bit extra.
Site :	Sweden, Stockholm, Hagsätra at balcony. Bortle class 9
Comment :	Here it is, a diffuse speckle between the stars.

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