David's Astronomy Pages
CCD Images - Session 813 (2020-09-26)

Objects Session Notes
Bullet IC 1222 - Spiral Galaxy (ARP 73)  with SN 2020enm
   
Bullet UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq
   
Bullet Variable Stars (photometric monitoring)
- R CrB, S Cyg, AM Her

- U Her attempt failed (timed out)
   
Bullet Nearby Stars (astrometric monitoring)
- None
  
   
- Evening session (1.3 hours total)
- Main aims of the session were the acquisition of a selection of deep sky targets, together with some variable star, nearby starand comet targets
- Session cut short due to problematic sky conditions (variable cloud cover, fast moving clouds affecting imaging and guiding, wind) and Dome Data Issues
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 8°C (min)
- CCD Temperature:  -15°C 
- Notes from 2020-09-26 >>
    
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IC 1222 - Spiral Galaxy (ARP 73) with SN 2020enm

IC 1222 with SN 2020enm (Hercules)
IC 1222 (catalog mag +13.4), aliases  ARP 73, PGC 58544

SN 2020enm  (Type Ia-99a SN) discovered 2020/03/16.913 by Xingming Observatory Sky Survey (XOSS)
 (Rochester Supernova site |  Discovery Image |  mag +17.7 V at discovery )
 
IC 1222 with SN 2020enm - 2020-09-26 (T+76.1d)
Image (2020-09-26.844) taken 193.9 days after SN discovery.
SN is not visible and confirms last observation that SN has dimmed significantly 
SN is below limiting magnitude ~18.3
Image
Annotated CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2020-09-26 20:15 UT (#813008)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2020enm (IC 1222) on Supernovae 2020 Page >>

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UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

UGC 6930 with SN 2020rcq (Ursa Major)
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 - Detail, 2020-09-16 (T+48.7d)
Image below (2020-09-26.858) was taken 48.7 days after discovery of SN 2020rcq
SN is shown by white cross hairs.  Measured SN magnitude +13.4
Image
Annotated CCD Image (100% size, square root scale, cropped)
2 x 120s exposure (average combine), 3x3 binning, C Filter
2020-09-26 20:35 UT (#813021-23)
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 >>

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