David's Astronomy Pages
CCD Images - Session 867 (2021-03-05)

Objects Session Notes
Bullet Nova Per 2020 - Nova (V1112 Per, AT 2020abap)
   
Bullet AT 2021bkv - Type CV Transient  (GCVS HV Aur)
Bullet AT 2021ckv - Type YSO Transient  (GCVS PR Ori)
Bullet AT 2021dbp - Type CV Transient
Bullet AT 2021elr - Type CV Transient, Candidate Be Star
   
Bullet CGCG 056-009 - Galaxy with Type Ia Supernova 2021apf
Bullet IC 992 - Spiral Galaxy with Type Ic Supernova 2021dwg
   
Bullet NGC 304 - Spiral Galaxy with Type Ia Supernova 2021dnn
Bullet NGC 2903 - Spiral Galaxy (Herschel I-56)
Bullet NGC 4227 - Spiral Galaxy with Type Ia Supernova 2021biz
   
Bullet UGCA 308 - Irregular Galaxy (PGC 44042)
   
Bullet UGC 1436 - Spiral Galaxy with Type Ia Supernova 2021nv
Bullet UGC 2505 - Irregular Galaxy with Type II Supernova 2021bge
Bullet UGC 3502 - Spiral Galaxy with Type Ia Supernova 2021cwc
   
Bullet Variable Stars (photometric monitoring)
- R CrB, Nova Per 2020, RR Tau,

   
Bullet Nearby Stars (astrometric monitoring)
- Barnards Star, DX Cnc, Scholz's Star
  
   
- All Night session (9.7 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/showers allowed and to test stability of AstroMain 3.38
-  
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: -2.5°C (min)
- CCD Temperature:  -20°C
- Notes from 2021-03-05 >>
   [ Local Files >> ]  
-  
   

Nova Per 2020 - Nova (V1112 Per, AT 2020abap)

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
AT 2020abap (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 - 2021-03-05 (T+100.0d)
Image below (2021-03-05.826) was taken 100.0 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.2 (brightening)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-05 19:55 UT (#867004-08)
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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AT 2021bkv - Type CV Transient (GCVS HV Aur)

AT 2021bkv (CV) (Auriga)
AT 2021bkv (Type: CV) discovered 2021/01/31.675 UT by XOSS
Alias: XM48HT
 ( Rochester Supernova site  )

 
AT 2021bkv (CV) - 2021-03-05 (T+33.2d)
Image below (2021-03-05.897) was taken 33.2 days after discovery of 2021bkv
Reported position of CV is shown by white circle. 
No obvious indication of an object at the reported position.  Transient is therefore unconfirmed 
(CV may have faded to be at or below the limiting magnitude of image)
Image
Annotated CCD Image  (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-03-05 21:34 UT (#867053-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
AT 2021bkv / HV Aur
Detailed inspection of the image shows a faint stellar object at the position of HV Aur
in the following enlarged negative display.
This would seem to confirm that the AT 2021bkv transient has faded back to its normal magnitude
Image
 Negative CCD Image  (150% size, linear scale, cropped)
Image details as above
 
Images of AT 2021bkv on Type CV Transients Page >>

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AT 2021ckv - Type YSO Transient  (GCVS PR Ori)

AT 2021ckv / PR Ori  (Orion)
AT 2021ckv (Type: YSO) discovered 2021/02/08.759 UT by Gaia
Alias: Gaia21arx, GCVS PR Ori
[ Gaia21arx ]
[ YSO Transients ]
 
AT 2021ckv / PR Ori - 2021-03-05 (T+25.1d)
Image below (2021-03-05.905) was taken 25.1 days after discovery of 2021ckv
Position of reported YSO Type Transient is shown by white cross-hairs.
Measured Magnitude +11.2 (brightening)
Image
Annotated CCD Image  (50% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 21:53 UT (#867060-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021ckv (PR Ori) on Transients 2021 Page >>

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AT 2021dbp - Type CV Transient

AT 2021dbp (Auriga)
AT 2021dbp (Type: CV) discovered 2021/02/14.535 UT by Gaia
Alias: Gaia21auv,  GSC 2374:280
 ( Rochester Supernova site |  Gaia21auv )
Based on Gaia Alert at magnitude +10.04
 
AT 2021dbp - 2021-03-05 (T+19.4d)
Image below (2021-03-05.888) was taken 19.4 days after discovery of 2021dbp
CV is shown by white cross hairs.  Measured Magnitude +10.95 (fading)
Image
Annotated CCD Image  (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, C Filter
2021-03-05 21:22 UT (#867047-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021dbp on Transients 2021 Page >>

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AT 2021elr - Type CV Transient (discovered 2021-03-03), Candidate Be Star

AT 2021elr (Monoceros)
AT 2021elr (Type: CV) discovered 2021/03/03.586 UT by Gaia
Alias: Gaia21bev
 ( Rochester Supernova site |  Gaia21bev )
Candidate Be star CoRoT 102656190 brightens by 0.2 mag
Transient triggererd at alerting magnitude of +13.78
Historic magnitude +13.95
UCAC2 star magnitude +13.80
 
AT 2021elr (CV) - 2021-03-05 (T+2.3d)
Image below (2021-03-05.919) was taken 2.3 days after discovery of 2021elr
CV is shown by white cross hairs.  Measured Magnitude +13.9
Image
Annotated CCD Image  (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-03-05 22:08 UT (#867067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021elr on Type CV Transients Page >>

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CGCG 056-009 - Galaxy with Type Ia Supernova 2021apf

CGCG 056-009 with SN 2021apf (Ophiuchus)
SN 2021apf (Type Ia, z=0.006531) discovered 2021/01/16.557 UT by ZTF
Alias: ZTF21aafdxca
 (Rochester Supernova site | Fabio Feijo image | )
 
CGCG 056-009 with SN 2021apf - 2021-03-06 (T+48.7d)
Image below (2021-03-06.216) was taken 48.7 days after discovery of 2021apf
SN is shown by white cross hairs.   Measured magnitude ?
Image
Annotated CCD Image  (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-03-06 05:14 UT (#867170)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021apf (CGCG 056-009) on Supernovae 2021 Page >>

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IC 992 - Spiral Galaxy with Type Ic Supernova 2021dwg

IC 992 with SN 2021dwg (Virgo)
SN 2021dwg (Type: Ic) discovered 2021/02/27.420 UT by ZTF
Alias: ZTF21aannoix
Magnitude +18.44 at discovery
 (Rochester Supernova site )
 
IC 992 with SN 2021dwg - 2021-03-06 (T+6.7d)
Image below (2021-03-06.086) was taken 6.7 days after discovery of 2021dwg
SN shown by white cross-hairs. Measured magnitude +17.6
Image
Annotated CCD Image  (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 02:10 UT (#867130-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021dwg (IC 992) on Supernovae 2021 Page >>

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NGC 304 - Spiral Galaxy with Type Ia Supernova 2021dnn

NGC 304 with SN 2021dnn (Andromeda)
[ Supernovae 2021 ]
SN 2021dnn (Type: Ia) discovered 2021/02/22.225 UT by ATLAS
Magnitude +18.3 at discovery
Alias: ZTF21aabpszb, Gaia21adm
 (Rochester Supernova site | TNS | )
 
NGC 304 with SN 2021dnn - 2021-03-05 (T+11.6d)
Image below (2021-03-05.836) was taken 11.6 days after discovery of 2021dnn
SN is shown by white cross hairs. 
Measured magnitude ?
(unable to resolve SN using CCDSoft/Sextractor)
Image
Annotated CCD Image  (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 20:13 UT (#867011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021dnn (NGC 304) on Supernovae 2021 Page >>

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NGC 2903 - Spiral Galaxy (Herschel I-56)

NGC 2903 (Leo)
Alias : Herschel I-56, Hidden Treasures 51
  [ Herschel 400 Objects ] [ Hidden Treasures ]
Image
CCD Image  (50% size, square root scale)
4 x 120s exposure (average combine), 3x3 binning, C Filter
2021-03-05 23:05 UT (#867106-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
 Negative CCD Image  (50% size, square root scale)
Image details as above
 
Image
 False Colour CCD Image  (50% size, square root scale)
Inverse Spectrum
Image details as above
 
NGC 2903 - Earlier Image (2011)
Image
CCD Image (cropped)
2 x 120s exposure (average combine), 3x3 binning, C Filter
2011-02-26 23:16 h UT  (#458189-90)
12" LX200R  (at f/9.7) + ST-10XME
 
NGC 2903 - Earlier Image (2004)
Image
CCD Image
12x10s (average combine), 2x2 binning, C Filter
2004-02-19  21:45 to 22:27h UT (#58171-202)
8" LX200 Classic + ST-7E
 

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NGC 4227 - Spiral Galaxy with Type Ia Supernova 2021biz

NGC 4227 with SN 2021biz (Canes Venatici)
SN 2021biz (Type: Ia) discovered 2021/01/29.543 UT by ATLAS
Alias: ATLAS21dfz
 (Rochester Supernova site | Gianluca Masi image | Jean-Claude Merlin image )
  
NGC 4227 with SN 2021biz - 2021-03-06 (T+35.6d)
Image below (2021-03-06.117) was taken 35.6 days after discovery of 2021biz
SN shown by white cross hairs.  Measured magnitude +16.4 (fading)
Image
Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 02:56 UT (#867146-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021biz (NGC 4227) on Supernovae 2021 Page >>

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UGCA 308 - Irregular Galaxy (PGC 44042)

UGCA 308 (Virgo)
Alias: PGC 44042
 [ UGCA Galaxies , Irregular Galaxies ]
Image
Annotated CCD Image  (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 01:52 UT (#867122-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
CCD Image  (125% size, square root scale, cropped)
Image details as above
 
Image
 Negative CCD Image  (125% size, square root scale, cropped)
Image details as above
 

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UGC 1436 - Spiral Galaxy with Type Ia Supernova 2021nv

UGC 1436 with SN 2021nv (Aries)
[ Supernovae 2021 ]
SN 2021nv (Type: Ia) discovered 2021/01/07.263 UT by ATLAS
Magnitude +17.8 at discovery
Alias: ATLAS21aqr
 (Rochester Supernova site | Claudio Balcon image | )
 
UGC 1436 with SN 2021nv - 2021-03-05 (T+57.6d)
Image below (2021-03-05.874) was taken 57.6 days after discovery of 2021nv
SN position is shown by white cross hairs. 
Image
Annotated CCD Image  (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 21:09 UT (#867040-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021nv (UGC 1436) on Supernovae 2021 Page >>
 

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UGC 2505 - Irregular Galaxy with Type II Supernova 2021bge

UGC 2505 with SN 2021bge (Cetus)
SN 2021bge (Type: II) discovered 2021/01/27.517 UT by Koichi Itagaki
Alias: ATLAS21dfn, Gaia21aqd
Discovery Magnitude 16.8 (Clear Filter)
vs Prior Non-Detection in DSS Image
Confirmed SN II
 ( Rochester Supernova site | Discovery Image  )
( TNS 2021bge | Gaia21aqd )
 
UGC 2505 with SN 2021bge - 2021-03-05 (T+37.3d)
Image below (2021-03-05.851) was taken 37.3 days after discovery of 2021bge
SN position is shown by white circle 
Measured Magnitude +16.7 (fading)
Image
Annotated CCD Image  (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-05 20:36 UT (#867020-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021bge (UGC 2505) on Supernovae 2021 Page >>

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UGC 3502 - Spiral Galaxy with Type Ia Supernova 2021cwc

UGC 3502 with SN 2021cwc (Camelopardalis)
SN 2021cwc (Type Ia, z=0.021) discovered 2021/02/13.381 UT by ATLAS
Alias: ATLAS21flz
 ( Rochester Supernova site |  Giancarlo Cortini image | Odd Trondal image )
 
UGC 3502 with SN 2021cwc - 2021-03-06 (T+20.7d)
Image below (2021-03-06.102) was taken 20.7 days after discovery of 2021cwc
SN is shown by white cross hairs.    Measured Mag ?
(unable to resolve SN properties using sextractor)
Image
Annotated CCD Image  (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-06 02:36 UT (#867138-42)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021cwc (UGC 3502) on Supernovae 2021 Page >>

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