David's Astronomy Pages
CCD Images - Session 882 (2021-04-11)

Objects Session Notes
Bullet C/2020 T2 (Palomar) - Comet
   
Bullet Nova Per 2020 - Nova (V1112 Per, AT2020abap)
Bullet Nova Cas 2021 - Nova (V1405 Cas)
   
Bullet NGC 3310 - Spiral Galaxy (Herschel IV-60) with SN 2021gmj
   
  -  UGC 6930 w/SN2020rcq attempted failed (due to cloud)
   
Bullet Variable Stars (photometric monitoring)
- AM CVn
   
Bullet Nearby Stars (astrometric monitoring)
- None
  
   
- Night session (5.9 hours)
- Main aims of the session were to acquire a selection of variable star, nearby star and comet targets and deep sky targets as cloud allowed
- Session interrupted for 4 hours (00:00 to 04:00) by cloud and rain showers
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 0.5°C (min)
- CCD Temperature:  -20°/ -25°C
- Notes from 2021-04-11 >>
   [ Local Files >> ]  
-  
   

Observing Result

Image

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C/2020 T2 (Palomar) - Comet

C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.32 AU (approaching)
Earth Distance 1.49 AU (222.4 million km)
Comet indicated by white cross-hairs
   C/2020 T2 (Palomar) - 2021-04-11, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -22.79 arcsec/hr, Dec -4.07 arcsec/hr)
(Note : Image is Log Scaled)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-04-11 21:50 UT (#882004-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-04-11 21:56 UT (#882004-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of C/2020 T2 (Palomar) on Comets 2021 Page >>    

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Nova Per 2020 - Nova (V1112 Per, AT2020abap)

Nova Per 2020 (Perseus)
Nova in Perseus discovered 2020/11/25.807
[ Novae ]
Nova Per 2020 discovered independently by Seiji Ueda and Stanislav Korotkiy et al
AT2020abap (Type: CV) reported 2020/11/27.230 UT by PGIR
Alias: N Per 2020 , PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232, V1112 Per
 
Nova Per 2020 - 2021-04-11 (T+137.1d)
Image below (2021-04-11.944) was taken 137.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.25 (brightening again)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-11 22:47 UT (#882036-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of Nova Per 2020 on Novae Page >>
 

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Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia)
Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan)
Magnitude at discovery +9.6 (unfiltered CCD)
AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia
Alias: Gaia21bpe, AT2021hkn, V1405 Cas
 
Nova Cas 2021 / AT2021hkn - 2021-04-12 (T+24.7d)
Image below (2021-04-12.142) was taken 24.7 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.72 
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated

(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-12 03:30 UT (#882048-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of Nova Cas 2021 on Novae Page >>
 

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NGC 3310 - Spiral Galaxy  (Herschel IV-60) with Type II Supernova 2021gmj

NGC 3310 / Herschel IV-60 with SN2021gmj (Ursa Major)
SN 2021gmj (Type: II) discovered 2021/03/20.320 UT by DLT40
Alias: ZTF21aaqgmjt, ATLAS21izq
 ( Rochester Supernova site |  Gianluca Masi image)
NGC 3310 with SN 2021gmj - 2021-04-11 (T+22.6d)
Image below (2021-04-11.926) was taken 22.6 days after discovery of 2021gmj
SN position indicated by white cross-hairs
Image
CCD Image (100% size, log scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-11 22:19 UT (#882022-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021gmj (NGC 3310) on Supernovae 2021 Page >>
 

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