David's Astronomy Pages
CCD Images - Session 870 (2021-03-14)

Objects Session Notes
Bullet NGC 4227 - Spiral Galaxy with Type Ia Supernova 2021biz
Bullet NGC 4631 - Spiral Galaxy with Type LRN Transient AT 2021biy
   
Bullet UGC 5760 - Spiral Galaxy with Type II Supernova 2020zoq
   
  - NGC 3515 and UGCA 245 attempts failed (due to cloud)
   
Bullet Variable Stars (photometric monitoring)
-AM Her, CY Lyr

   
Bullet Nearby Stars (astrometric monitoring)
- None
  
   
- All Night session (8.1 hours)
- Session heavily interrupted by cloud, with only rare clearer intervals
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 4°C (min)
- CCD Temperature:  -20°C
- Notes from 2021-03-14 >>
   [ Local Files >> ]  
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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 - 2021-03-14 (T+44.4d)
Image below (2021-03-14.954) was taken 44.4 days after discovery of 2021biz
SN shown by white cross hairs.  Measured magnitude +16.58 (unchanged)
Image
Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-14 23:01 UT (#870033-36)
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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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 - 2021-03-16 (T+46.4d)
Image below (2021-03-16.928) was taken 46.4 days after discovery of 2021biy
LRN (very faint) is shown by white cross hairs. 
Image
Annotated CCD Image  (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-03-16 22:24 UT (#871052-55)
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 >>

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UGC 5760 - Spiral Galaxy with Type II Supernova 2020zoq

UGC 5760 w/SN 2020zoq (Leo)
SN 2020zoq (Type II, z=0.0, zhost=0.010040) discovered 2020/11/14.561 by ASAS-SN
Discovery Magnitude +17.5 (g-Sloan)
 (Rochester Supernova site | Discovery Image | TNS 2020zoq )
 
UGC 5760 with SN 2020zoq - 2021-03-14 (T+120.4d)
Image below (2021-03-14.978) was taken 120.4 days after discovery of 2020zoq
SN is shown by white cross hairs.  Measured magnitude ?
Poor quality image (poor sky transparency / single subframe)
Image
Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-03-14 23:31 UT (#870042)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
UGC 5760 with SN 2020zoq - Earlier Image 2020-11-22 (T+11.7d)
Image below (2020-11-26.219) was taken 11.7 days after discovery of SN 2020zoq
SN is shown by white cross hairs.   Measured magnitude +15.75
Image
Annotated CCD Image  (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2020-11-26 05:16 UT (#833235-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2020zoq (UGC 5760) on Supernovae 2020 Page >>

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