David's Astronomy Pages
CCD Images - Session 865 (2021-02-27)

Objects Session Notes
Bullet 7P/Pons-Winnecke - Comet
Bullet 156P/Russell-LINEAR - Comet
Bullet 398P/Boattini - Comet
   
Bullet Nova Per 2020 - Nova (V1112 Per, AT 2020abap)
   
Bullet AT 2021ckv - Type YSO Transient  (GCVS PR Ori)
Bullet AT 2021cxz - Type CV Transient
Bullet AT 2021dbp - Type CV Transient
   
Bullet 2MASX J12303540+4257559 - Galaxy with AGN / Transient AT 2021bgi
Bullet IC 992 - Spiral Galaxy with Type Ic Supernova 2021dwg
Bullet KUG 1206+328 - Spiral Galaxy with Type Ia Supernova 2020aeps
   
Bullet NGC 304 - Spiral Galaxy with Type Ia Supernova 2021dnn
Bullet NGC 4227 - Spiral Galaxy with Type Ia Supernova 2021biz
Bullet NGC 4631 - Spiral Galaxy with Type LRN Transient AT 2021biy
Bullet NGC 4774 - Spiral Galaxy (Kidney Bean Galaxy) with AT 2021cjd
   
Bullet SN 2021xn - Type Ia Supernova in PGC 6041
   
Bullet UGC 1436 - Spiral Galaxy with Type Ia Supernova 2021nv
Bullet UGC 2505 - Irregular Galaxy with Type II Supernova 2021bge
Bullet UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq
   
Bullet Variable Stars (photometric monitoring)
- SY Cnc, R CrB, SS Cyg, U Her, FU Ori, RR Tau

   
Bullet Nearby Stars (astrometric monitoring)
- Barndards Star, LAMOST-HVS1
  
   
- All Night session (10.3 hours)
- Main aims of the session were to acquire a selection of variable star, nearby star and comet targets and deep sky targets as conditions allowed.
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 0°C (min)
- CCD Temperature:  -20°C/-25°C
- Notes from 2021-02-27 >>
   [ Local Files >> ]  
-  
   

7P/Pons-Winnecke - Comet

7P/Pons-Winnecke
(passing through Hercules)
Sun Distance 1.62 AU (approaching)
Earth Distance 1.16 AU (173.2 million km)
Expected position of comet shown by white circle
   7P/Pons-Winnecke - 2021-02-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 99.78 arcsec/hr, Dec -0.51 arcsec/hr)
Comet position is indicated by white circle.
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-28 04:09 UT (#865198-200)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  CCD Image (100% size, square root scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-28 04:11 UT (#865198-206)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of 7P/Pons-Winnecke on Comets 2021 Page >>    

Back to Top


156P/Russell-LINEAR - Comet

156P/Russell-LINEAR
(passing through Perseus)
Sun Distance 1.75 AU  (receeding)
Earth Distance 1.48 AU (221.6 million km)
Adjacent bright star is HIP 19083 (mag +7.5)
   156P/Russell-LINEAR - 2021-02-27  Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 117.33 arcsec/hr, Dec 10.71 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-27 23:20 UT (#865088-90)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  CCD Image (100% size, square root scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-27 23:23 UT (#865088-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of 156P/Russell-LINEAR on Comets 2020 Page >>    

Back to Top


398P/Boattini - Comet

398P/Boattini
(passing through Gemini)
Sun Distance 1.49 AU (receeding)
Earth Distance 0.70 AU (105.4 million km)
Comet very faint, indicated by white cross-hairs
   398P/Boattini - 2021-02-27, Detail
Alias: P/2020 P2 (Boattini)
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 98.01 arcsec/hr, Dec 25.85 arcsec/hr)
Comet indicated by white cross-hairs
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-27 23:06 UT (#865077-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  Annotated CCD Image (100% size, square root scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-27 23:08 UT (#865077-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of 398P/Boattini on Comets 2020 Page >>    

  

Back to Top


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 - 2021-02-27 (T+94.2d)
Image below (2021-02-27.988) was taken 94.2 days after discovery of of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (flat ?)
Image
CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-27 23:49 UT (#865108-10)
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 >>
 

Back to Top


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 - 2021-02-27 (T+19.1d)
Image below (2021-02-27.861) was taken 19.1 days after discovery of 2021ckv
Position of reported YSO Type Transient is shown by white cross-hairs.
Measured Magnitude +11.6 (fading ?)
Image
Annotated CCD Image  (50% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 20:49 UT (#865049-53)
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 >>

Back to Top


AT 2021cxz - Type CV Transient,  unknown type

AT 2021cxz  (Monoceros)
AT 2021cxz (Type: CV) discovered 2021/02/13.759 UT by Gaia
Alias: Gaia21aua
 ( Rochester Supernova site | TNS 2021cxz | Gaia21aua )
Galactic plane source brightened by 0.25 mag in 18 months
Magntitude +14.4 at discovery
 
AT 2021cxz - 2021-02-27 (T+14.1d)
Transient is shown by white cross hairs. 
Image
Annotated CCD Image  (50% size, linear scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-02-27 20:21 UT (#865031-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
AT 2021cxz - 2021-02-27 (T+14.1d)
Image below (2021-02-27.846) was taken 14.1 days after discovery of 2021cxz
Transient is shown by white cross hairs.  Measured Magnitude +14.4
vs UCAC2 magnitude  +14.2
Image
Annotated CCD Image  (100% size, linear scale, cropped)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-02-27 20:21 UT (#865031-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021cxz on Type CV Transients Page >>

Back to Top


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 - 2021-02-27 (T+13.4d)
Image below (2021-02-27.981) was taken 13.4 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
2021-02-27 23:35 UT (#865099-103)
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 >>

Back to Top


2MASX J12303540+4257559 - Galaxy with AGN / Transient AT 2021bgi

AT 2021bgi (Canes Venatici)
In 2MASX J12303540+4257559
AT 2021bgi (Type AGN, zhost=0.065590) discovered 2021/01/27.048 UT by GSNST
Alias: GSNST-21ar
 ( Rochester Supernova site )
 [ Active Galactic Nuclei ]
 
2MASX J12303540+4257559 with AT 2021bgi - 2021-02-28 (T+32.0d)
Image below (2021-02-28.037) was taken 32.0 days after discovery of 2021bgi
Transient/Galaxy nucleus is shown by white cross hairs.  Combined magnitude +15.5 (brightening)
Image
Annotated CCD Image  (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 01:02 UT (#865133-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021bgi (2MASX J12303540+4257559) on Transients 2021 Page >>

Back to Top


AT 2021bxp - Type CV Transient (unconfirmed)

AT 2021bxp (Leo Minor)
AT 2021bxp (Type: CV) discovered 2021/02/05.909 UT by XOSS
Alias: XM51HT, TCP J10203579+3103424, ZTF21aaherhg
 ( Rochester Supernova site )
 
AT 2021bxp - 2021-02-28 (T+22.1d)
Image below (2021-02-28.053) was taken 22.1 days after reported discovery of 2021bxp
CV is shown by white cross-hairs. Measured magnitude  +15.2
Image
Annotated CCD Image  (50% size, linear scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-02-28 01:20 UT (#865142-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of AT 2021bxp on Type CV Transients Page >>

Back to Top


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 - 2021-02-28 (T+0.7d)
Image below (2021-02-28.081) was taken 0.7 days after discovery of 2021dwg
No indication of an object at reported SN position (shown by white circle)
SN might still be too faint and/or or image quality is too poor
(due to sub-optimal sky conditions)
(SN is however visible in a later image taken 6.7 days after SN discovery)
Image
Annotated CCD Image  (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 02:06 UT (#865167-71)
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 >>
 

Back to Top


KUG 1206+328 - Spiral Galaxy with Type Ia Supernova 2020aeps

KUG 1206+328 with SN 2020aeps (Coma Berenices)
SN 2020aeps (Type: Ia) discovered 2020/12/29.904 UT by XOSS
Alias: XM25HT, ZTF20adagenq, Gaia21adn
 (Rochester Supernova site | Discovery Image  )
 
KUG 1206+328 with SN 2020aeps - 2021-02-28 (T+60.2d)
Image below (2021-02-28.097) was taken 60.2 days after discovery of 2020aeps
SN is shown by white cross hairs.  Measured magnitude ? (fading)
(unable to resolve SN using CCDSoft Image Link/ Sextractor
Image
CCD Image  (150% size, square root scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, C Filter
2021-02-28 02:26 UT (#865176-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2020aeps (KUG 1206+328) on Supernovae 2020 Page >>
 

Back to Top


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 - 2021-02-27 (T+5.6d)
Image below (2021-02-27.815) was taken 5.6 days after discovery of 2021dnn
SN is shown by white cross hairs. 
Measured magnitude ?
(unable to resolve SN using sextractor)
Image
Annotated CCD Image  (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 19:41 UT (#865014-17)
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 >>
 

Back to Top


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 - 2021-02-28 (T+29.5d)
Image below (2021-02-28.019) was taken 29.5 days after discovery of 2021biz
SN shown by white cross hairs.  Measured magnitude +16.2 (fading)
(Image affected by offset light source)
Image
Annotated CCD Image  (125% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 00:36 UT (#865126-30)
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 >>

Back to Top


NGC 4631 - Spiral Galaxy with Type LRN Transient AT 2021biy

NGC 4631 with AT 2021biy (Canes Venatici)
AT 2021biy (Type: LRN) discovered 2021/01/29.559 UT by ATLAS
Alias: ATLAS21dfy (Discovery Note)
 (Rochester Supernova site | Odd Trondal image | Nick James image )

LRN = Luminous Red Nova [ LRN Transients ]
 
NGC 4631 with AT 2021biy - 2021-02-28 (T+29.5d)
Image below (2021-02-28.068) was taken 29.5 days after discovery of 2021biy
LRN shown by white cross hairs.  Measured magnitude +16.5
(Image affected by offset light source)
Image
Annotated CCD Image  (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 01:46 UT (#865160-63)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021biy (NGC 4631) on Transients 2021 Page >>

Back to Top


NGC 4774 - Spiral Galaxy (Kidney Bean Galaxy) with Type IIP Supernova 2021cjd

NGC 4774 with AT 2021cjd (Canes Venatici)
SN 2021cjd (Type: IIP) discovered 2021/02/07.491 UT by ZTF
Alias: ZTF21aajgdeu
Discovery Magnitude 20.23 (g-ZTF Filter)
( TNS 2021cjd )
 
NGC 4774 with AT 2021cjd - 2021-02-28 (T+20.6d)
Image below (2021-02-28.119) was taken 20.6 days after discovery of 2021cjd
Image
Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-28 03:01 UT (#865191-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   
NGC 4774 - Earlier Image (2020-02-02)
Ring Galaxy, J.Lowrey List
NGC 4774 (catalog mag +14.8)
with adjacent faint galaxy  PGC 2087677 (catalog mag +17.2)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2020-02-02 05:19 UT (#749304-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   
NGC 4774 - Earlier Image
NGC 4774 (catalog mag +14.8)
with adjacent faint galaxy  PGC 2087677 (catalog mag +17.2)
Image
Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2019-12-31 23:51 UT (#734368-72)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   

Back to Top


SN 2021xn - Type Ia Supernova in PGC 6041

SN 2021xn (Perseus)
Faint Galaxy (PGC 6041, SDSS J013751.16+533958.8, catalog mag +16.1)
with Type Ia Supernova
[ Supernovae ]

SN 2021xn (Type: Ia) discovered 2021/01/10.158 UT by ZTF
Alias: ZTF21aacvhsc
 (Rochester Supernova site | Claudio Balcon image  )
 
PGC 6041 with SN 2021xn - 2021-02-27 (T+48.7d)
Image below (2021-02-27.891) was taken 48.7 days after discovery of 2021xn
SN is shown by white cross hairs.  Measured Magnitude +16.3 (SN)
(magnitude based on WCS link on cropped image using GSC stars with x3 scale,
too many stars for full frame WCS Link using UCAC stars)
Image
Annotated CCD Image  (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 21:31 UT (#865064-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021xn (PGC 6041) on Supernovae 2021 Page >>

Back to Top


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 - 2021-02-27 (T+51.6d)
Image below (2021-02-27.876) was taken 51.6 days after discovery of 2021nv
SN position is shown by white cross hairs. 
Image
Annotated CCD Image  (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 21:12 UT (#865057-61)
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 >>
 

Back to Top


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
Gaia, 2021-02-05 00:41:24, Mag 16.74
Gaia, 2021-03-17 05:48:37, Mag 17.20
 ( Rochester Supernova site | Discovery Image  )
( TNS 2021bge | Gaia21aqd )
 
UGC 2505 with SN 2021bge - 2021-02-27 (T+31.3d)
Image below (2021-02-27.831) was taken 31.3 days after discovery of 2021bge
SN position is shown by white cross-hairs
  Measured Magnitude +16.6 (Clear Filter)
Image
Annotated CCD Image  (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-02-27 20:06 UT (#865022-26)
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 >>

Back to Top


UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

UGC 6930 with SN 2020rcq (Ursa Major)
Spiral Galaxy with Type Ia Supernova
[ Supernovae ]

SN 2020rcq (Type 1a, z=0.002597) discovered 2020/08/09.168 by Zwicky Transient Facility (ZTF)
 (Rochester Supernova site | Giancarlo Cortini image | )
 
UGC 6930 with SN 2020rcq - 2021-02-28 (T+202.9d)
Image below (2021-02-28.108) was taken 202.9 days after discovery of 2020rcq
SN is shown by white cross hairs.  Measured SN magnitude +16.75 (fading)
Image
Annotated CCD Image (100% size, square root scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, C Filter
2021-02-28 02:41 UT (#865183-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2020rcq (UGC 6930) on Supernovae 2020 Page >>

Back to Top