David's Astronomy Pages
CCD Images - Session 766 (2020-04-06)

Objects Session Notes
Bullet IC 1222 - Spiral Galaxy (ARP 73)  with SN 2020enm
   
Bullet NGC 5157 - Spiral Galaxy with Type 1a SN 2020ees
   
Bullet Variable Stars (photometric monitoring)
  - RX And, U Gem, AM Her, RZ LMi, CY Lyr, FG Sge
   
Bullet Nearby Stars (astrometric monitoring)
 - Groombridge 34
 
  
   
- All night session (6.2 hours total). Session interrupted by cloud

- Main aims of the session was to  acquire images of a selection of deep sky and comet objects
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 2°C (min)
(Dew heaters on auto)
- CCD Temperature:  -20°C  (65% av. power)
- Notes from 2020-04-06 >>
    
   

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 - 2020-04-06 (T+21.1d)
Image (2020-04-06.960) taken 21.1 days after SN discovery.
SN shown by white cross hairs. Measured Magnitude +16.8
Image
Annotated CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2020-04-06 23:02 UT (#766028-30)
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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NGC 5157 - Spiral Galaxy with Type 1a Supernovae 2020ees

NGC 5157 with SN 2020ees (Canes Venatici)
SN 2020ees (Type 1a), discovered 2020/03/05.472 by ATLAS
 (Rochester Supernova site | Odd Trondal image  )

Image below (2020-04-06.948) was taken 32.48 days after discovery of SN 2020ees
SN is shown by white cross hairs.   Estimated SN magnitude +16.7
Image taken under very poor sky conditions, thin cloud & moonlight
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2020-04-06 22:45 UT (#766021-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 5157 with SN 2020ees - Earlier Image (2020-03-27)
Image below (2020-03-27.928) was taken 22.46 days after discovery of SN 2020ees
SN is shown by white cross hairs.   Estimated SN magnitude +16.4
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2020-03-27 22:17 UT (#764081-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 
NGC 5157 with SN 2020ees - Earlier Wide View (2020-03-27)
SN 2020ees, Type 1a Supernova
Other galaxies in view :  PGC 47206 (catalog mag +15.5),
PGC 1972782 (+17.8),  PGC 1978267 (+17.9), 
PGC 1977070 (+18.0), PGC 1979392 (+18.1)
Image
Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2020-03-27 22:17 UT (#764081-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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