David's Astronomy Pages
CCD Images - Session 911 (2021-09-06)

Objects Session Notes
Bullet C/2019 L3 (ATLAS) - Comet
   
Bullet Nova Per 2020 - Nova (V1112 Per, AT2020abap)
Bullet Nova Cas 2021 - Nova (V1405 Cas)
   
Bullet NGC 940 - Spiral Galaxy with Type Ia Supernova 2021vtl
Bullet NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv
Bullet NGC 6500 - Spiral Galaxy with Type Ia Supernova 2021wuf
    
Bullet UGC 2605 - Irregular Galaxy with Type II Supernova 2021wvw
Bullet UGC 4002 - Spiral Galaxy with Type II Supernova 2021wvy
Bullet UGC 10607 - Spiral Galaxy with Type Ia Supernova 2021xgx
Bullet UGC 11252 - Spiral Galaxy with Transient AT 2021ugn
    
Bullet Variable Stars (photometric monitoring)
- RR Lyr
    
Bullet Nearby Stars (astrometric monitoring)
- Teegardens Star
  
   
- All Night Session (5.8 hours).
- Main aims of the session were to acquire a selection of targets as conditions allowed
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 12°C (min)
- CCD Temperature:  -5°/-10°C
- Notes from 2021-09-06 >>
   [ Local Files >> ]  
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C/2019 L3 (ATLAS) - Comet

C/2019 L3 (ATLAS) - 2021-09-07
(passing through Lynx) ? query
Sun Distance 4.73 AU (approaching)
Earth Distance 4.05 AU (606.5 million km)
   C/2019 L3 (ATLAS) - 2021-09-07, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 46.80 arcsec/hr, Dec -11.69 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
45s exposure (single frame), 3x3 binning, C Filter
2021-09-07 02:57 UT (#911114)
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
2021-09-07 03:01 UT (#911114-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of C/2019 L3 (ATLAS) on Comets 2021 Page >>    

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Nova Per 2020 - Nova (V1112 Per, AT2020abap)

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
AT2020abap (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 - 2021-09-07 (T+285.3d)
Image below (2021-09-07.131) was taken 285.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (falling)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-07 03:14 UT (#911125-29)
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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Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia)
Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan)
Magnitude at discovery +9.6 (unfiltered CCD)
AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia
Alias: Gaia21bpe, AT2021hkn, V1405 Cas
 
Nova Cas 2021 / AT2021hkn - 2021-09-06 (T+172.6d)
Image below (2021-09-06.980) was taken 172.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.92
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-06 23:32 UT (#911021-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-06 (T+172.6d)
Image
Spectra produced in AstroMain using Image taken with Star Analyser 200
5 x 30s exposure (average combine), 2x2 binning, S Filter
2021-09-06 23:36 UT (#911026-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of Nova Cas 2021 on Novae Page >>
 

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NGC 940 - Spiral Galaxy with Type Ia Supernova 2021vtl

NGC 940 with SN2021vtl (Triangulum)
SN 2021vtl (Type: Ia) discovered 2021-08-11.930 UT by XOSS
Alias: PSP21D, Gaia21duk, PSN J02292803+3138385
Discovery Magnitude 17.3 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude 18.0
Confirmed SN Ia
 ( TNS 2024ivo | Gaia21duk )  
 
NGC 940 with SN 2021vtl - 2021-09-07 (T+26.2d)
Image below (2021-09-07.140) was taken 26.2 days after discovery of 2021vtl
SN (distinct) is shown by white cross-hairs
Estimated Magnitude +16.0 (Clear Filter)
Image
Annotated CCD Image  (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 03:31 UT (#911133-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021vtl (NGC 940) on Supernovae 2021 Page >>

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NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv

NGC 6184 with SN 2021wkv (Hercules)
SN 2021wkv (Type: Ia, zhost=0.027329) discovered 2021/08/20.277 UT by ATLAS
Alias: ATLAS21bgqy. Gaia21fab
Discovery Magnitude 18.16 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.2
Confirmed SN Ia
Gaia, 2021-10-31 22:54, Mag 19.10
Gaia, 2021-11-01 00:40, Mag 19.04
Gaia, 2021-12-13 10:30, Mag 19.93
Gaia, 2022-01-09 18:12, Mag 20.38
 (Rochester Supernova site | Rafa Ferrando Image )
[ TNS 2021wkv | Gaia21fab ]
 
NGC 6184 with SN 2021wkv - 2021-09-07 (T+17.7d)
Image below (2021-09-07.007) was taken 17.7 days after discovery of 2021wkv
SN position (brightening) is shown by white cross-hairs.
Measured mag +15.62 (Clear Filter)
Image
Annotated CCD Image  (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 00:16 UT (#911044-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021wkv (NGC 6184) on Supernovae 2021 Page >>

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NGC 6500 - Spiral Galaxy with Type Ia Supernova 2021wuf

NGC 6500 with SN2021wuf (Hercules)
SN 2021wuf (Type: Ia) discovered 2021-08-23.372 UT by ATLAS
Alias: ATLAS21bgsc
 (Rochester Supernova site | Mantero Andrea image )
( TNS 2021wuf )
 
NGC 6500 with SN 2021wuf - 2021-09-07 am (T+14.7d)
Image below (2021-09-07.026) was taken 14.7 days after discovery of 2021wuf
SN position (distinct) is shown by white cross-hairs.
Measured mag +14.16 (Clear Filter)
Image
Annotated CCD Image  (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 00:37 UT (#911052-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021wuf (NGC 6500) on Supernovae 2021 Page >>

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UGC 2605 - Irregular Galaxy with Type II Supernova 2021wvw

UGC 2605 with SN2021wvw (Perseus)
SN 2021wvw (Type: II, z=0.009944) discovered 2021-08-24.606 UT by PS1
Alias: PS21jnb
Host Alias : PGC 12073
 (Rochester Supernova site
 
UGC 2605 with SN 2021wvw - 2021-09-07 (T+13.5d)
Image below (2021-09-07.095) was taken 13.5 days after discovery of 2021wvw
Supernova (faint but still distinct) shown by white cross-hairs
Measured magnitude +17.43 (Clear Filter)
Image
CCD Image  (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 02:24 UT (#911101-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021wvw (UGC 2605) on Supernovae 2021 Page >>

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UGC 4002 - Spiral Galaxy with Type II Supernova 2021wvy

UGC 4002 with SN2021wvy (Lynx)
SN 2021wvy (Type: II) discovered 2021-08-23.520 UT by ZTF
Alias: ZTF21abvdikq, Gaia21dym
Magnitude at discovery +18.09 (r-ZTF Filter)
 ( Rochester Supernova site )
[ TNS 2021wvy | Gaia21dym ]
 
UGC 4002 with SN 2021wvy - 2021-09-07 (T+14.6d)
Image below (2021-09-07.110) was taken 14.6 days after discovery of 2021wvy
The reported transient (faint) is shown by white cross-hairs
Very poor quality image (poor guiding)
Image 
Annotated CCD Image  (150% size, square root scale, cropped
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-07 02:46 UT (#911107-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021wvy (UGC 4002) on Supernovae 2021 Page >>
 

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UGC 10607 - Spiral Galaxy with Type Ia Supernova 2021xgx

UGC 10607 with SN2021xgx (Hercules)
SN 2021xgx (Type: Ia) discovered 2021-08-29.711 UT by ASAS-SN
Alias: ASASNS-21qp, Gaia21ebg
Discovery Magnitude 17.05 (g-SLOAN filter)
( Rochester Supernova site | Manfred Mrotzek image |
( TNS 2021xgx | Gaia21ebg )
 
UGC 10607 with SN 2021xgx - 2021-09-06 (T+8.3d)
Image below (2021-09-06.995) was taken 8.3 days after discovery of 2021xgx
SN position (not separately visible) is shown by white cross-hairs.
Measured magnitude  (SN + Galaxy Nucleus) +14.23 (Clear Filter)
Image
CCD Image (125% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-09-06 23:57 UT (#911038-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2021xgx (UGC 10607) on Supernovae 2021 Page >>
 

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UGC 11252 - Spiral Galaxy with Transient AT 2021ugn

UGC 11252 with AT 2021ugn (Draco)
AT 2021ugn (Type: unk) discovered 2021-07-28.308 UT by ZTF
Alias: ZTF19abvxgtn, Gaia21edh
Discovery Magnitude 18.13 (r-ZTF Filter)
 ( Rochester Supernova site | TNS 2021ugn | Gaia21edh )
 
UGC 11252 with AT 2021ugn - 2021-09-07 (T+40.7d)
Image below (2021-09-07.035) was taken 40.7 days after discovery of 2021ugn
Position of reported transient (not separately visible) is shown by white cross-hairs
Image
Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2021-09-07 00:50 UT (#00911059)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2021ugn (UGC 11252) on Transients 2021 Page

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