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Boattini C/2010 U3

Object : Comet, Boattini C/2010 U3
Coordinates/Direction : -
Object size : -
Object magnitude : 15.4, at maximum
More to know : You can read more about the comet on Seiichi Yoshida's homepage: comet/ catalog/ 2010U3/ 2010U3.html

Comet's light curve:

Comet Boattini U3, light curve 2020 Credit: software 'Comet for Windows' from Seiichi Yoshida

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

Comet Boattini C/2010 U3 2020-02-18:

Comet Boattini C/2010 U3, Sweden 20200218
Date : 2020-02-18
Time (UT) : 22:20 to 23:07
Mount : SkyWatcher EQ6 Pro, beltdrive modified (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, x1. T48 connector to camera
Field (FOV) : 2.25 x 1.5o (full frame) before crop
camera : Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature: About 6o 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: 20o-90o, 165o-185o, La: 20o-55o
Comment : With a magnitude of 18 or less it's very difficult to find the comet. Needs a long exposure time and a very dark place to succeed. Then the comet can't be find it's not possible to aligned to it. In this case it doesn't matter because it moves very slowly so it can be aligned on the stars instead. But the two bright stars could help to find the place where the comet is.

Crop around the comet:

Comet: Boattini C/2010 U3, Sweden 2020
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 : With help of the two bright stars and the galaxy NGC 5164, magnitude 14.6. The comet could be find, it wasn't easy to catch.

Sky simulation with CdC (Skychart):

Comet: Boattini C/2010 U3, Sweden 2020
Comment : With the CdC (Skychart) software you can simulate and see where to find the comet.
The inner red circle is 1 degree diameter, the outer is 4 degrees. The rectangle is the field with a full frame sensor at focal length of 910 mm, about 2.2 x 1.5 degrees.
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