David's Astronomy Pages
CCD Images - Session 919 (2021-10-01)

Objects Session Notes
Bullet Nova Cas 2021 - Nova (V1405 Cas)
    
Bullet Variable Stars (photometric monitoring)
- BL Lac
    
Bullet Nearby Stars (astrometric monitoring)
- None
  
   
- Full night Session (8.8 hours).
- Clear skies all night but poor seeing and moonlit
- Main aims of the session were to acquire a selection of targets including  Comet 67P/Churyumov-Gerasimenko
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 12°C (min)
- CCD Temperature:  -10°C
- Notes from 2021-10-01 >>
   [ Local Files >> ]  
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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 - 2021-10-02 (T+197.6d)
Image below (2021-10-02.006) was taken 197.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.12
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-02 00:11 UT (#919011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-02 (T+197.6d)
Image
Spectra produced in AstroMain using Image taken with Star Analyser 200
2 x 30s exposure (average combine), 2x2 binning, S Filter
2021-10-02 00:13 UT (#919016-17)
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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