David's Astronomy Pages
Images - Session 1094 (2023-01-29)

Objects Session Notes
Bullet 29P/Schwassmann-Wachmann - Comet
   
Bullet AT 2023nf - CV Type Transient
   
Bullet IC 418 - Planetary Nebula (Raspberry Nebula)
Bullet NGC 2281 - Open Cluster (H VIII-71)
Bullet NGC 2283 - Spiral Galaxy with Type II Supernova 2023axu  (Attempt)
   
Bullet Variable Stars (photometric monitoring)
- None
    
Bullet Nearby Stars (astrometric monitoring)
- None
  
- Short late night session (1.3 hours) ended early due to developing high wind.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 3.5°C (min)
- CCD Temperature:  -20°C
- Notes from 2023-01-29 >>
 
   
   

29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2023-01-29
(passing through Auriga)

Sun Distance 6.07 AU
Earth Distance 5.23 AU (782.7 million km)
   29P/Schwassmann-Wachmann - 2023-01-29 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -14.37 arcsec/hr, Dec -2.60 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-01-29 22:19 UT (#1094019-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  Annotated CCD Image (100% size, log scale, cropped)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-01-29 22:19 UT (#1094019-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
     
Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >>    

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AT 2023nf - CV Type Transient

AT 2023nf (Gemini)
AT 2023nf (Type: CV) discovered 2023-01-14.596 UT by Kojima 
Discovery Magnitude 13.2 (Clear Filter)
 ( TNS 2023nf )

 
AT 2023nf - 2023-01-29 (T+15.3d)
Image below (2023-01-29.935) was taken 15.3 days after discovery of 2023nf
Position of reported transient (faint) is shown by white cross-hairs 
Measured magnitude +15.52

Image

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-01-29 22:35 UT (#1094024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2023nf on Transients 2023 Page >>

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IC 418 - Planetary Nebula (Raspberry Nebula)

IC 418 (Lepus)
Alias: Hidden Treasures 28
 [ Planetary Nebula ] [ Hidden Treasures ]

Image

Annotated CCD Image (50% size, linear scale)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-01-29 21:49 UT (#1094005-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

Image

Annotated CCD Image (150% size, log scale, cropped)
Image details as above
 
IC 418 Spectra
Image
CCD Image (100% size, square root scale, rotated, cropped)
5 x 60s exposure (average combine), 2x2 binning, S Filter
2023-01-29 21:54 UT (#1094010-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
 

IC 418 - Earlier Image (2007)

Image

Annotated CCD Image (50% size, insert 250% size)
3 x 30 sec (average combine), 1x1 binning, C Filter
2007-12-18 23:18hUT (#243230-32)
8" LX200 Classic + ST-7E

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NGC 2281 - Open Cluster (H VIII-71)

NGC 2281 \ H VIII-71 (Auriga)
Image
Colour CMOS Image (16% size, asinh stretched)
20 x 30s exposure (stacked), 1x1 binning, gain 375
2023-01-18 23:07 UT  (#23_07_21)
TS 80mm APO, ZWO ASI178MC & PHD2
Auto-guided using 12" LX200R (at f/10.4) + ST-10XME

Frames acquired using SharpCap
Processed & displayed using SiriL 1.0.6
 
NGC 2281 - Detail
Image
Colour CMOS Image (32% size, asinh stretched, cropped)
Image details as above
 
NGC 2281 - Detail
Colour CMOS Image scaled & cropped
 to match Feb 2019 CCD Image (see bottom-most image)
Image
Colour CMOS Image (53% size, asinh stretched, cropped)
Image details as above
 
NGC 2281 - Earlier CCD Image (Feb 2019)
Image 
CCD Image (70% size)
6 x 30s exposure (average combine), 3x3 binning, C Filter
2019-02-01 01:12 UT (#654371-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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NGC 2283 - Spiral Galaxy with Type II Supernova 2023axu (Attempt)

NGC 2283 with SN 2023axu (Canis Major)
SN 2023axu (Type: II) discovered 2023-01-28.116 UT by DLT40
Alias: DLT23a 
Discovery Magnitude 15.64 (Clear Filter)
 ( TNS 2023axu )

 
NGC 2283 with SN 2023axu - 2023-01-29 (T+1.8d)
Image below (2023-01-29.949) was taken 1.8 days after discovery of 2023axu
Position of reported transient (very faint  / not visible) is shown by white cross-hairs 
Poor quality image (poor transparency, sky ? or optics ?)

Image

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2023-01-29 22:46 UT (#1094032)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2023axu (NGC 2283) on Supernova 2023 Page >>

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