David's Astronomy Pages
CCD Images - Session 743 (2020-01-19)

Objects Session Notes
Bullet 3C 58 - Supernova Remnant (attempt)
   
Bullet Minkowski 1-8 - Planetary Nebula (PN G210.3+1.9)
   
Bullet Variable Stars (photometric monitoring)
  - RX And, Z And, AM CVn, SY Cnc, R CrB, S Cyg, SS Cyg, U Gem, AM Her, SS Her, U Her, RZ LMi, BL Lac, CY Lyr, FU Ori, DY Per, GK Per, FG Sge, V Sge, RR Tau, ER UMa

- FO Ori attempt failed (aborted)
   
Bullet Nearby Stars (astrometric monitoring)
 - None
 
  
   
- All night session (8 hours total).
Shutter closed at 04:34 after Job Queue hung.

- Main aims of the session was to acquire a selection of targets, including variable stars, nearby stars and a few specially selected deep sky objects.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature:  -1°C (min) , rise to 4.5 deg in 15 min as warm front came through at 02:45
(Dew heaters on auto)
- CCD Temperature:  -25°/-20°C  (80%/70% av. power)
- Notes from 2020-01-19 >>
    
   

3C 58 - Supernova Remnant (attempt)

3C 58 (Cassiopeia)
Attempted image of supernova remnant 3C 58 (not visible)
Image 
 CCD Image (50% size)
8 x 180s exposure (average combine), 3x3 binning, C Filter
2020-01-20 02:03 UT (#743073-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 3C 58 Region
Image affected by poor seeing but no sign of
supernova remnant in this image  (24 min total exposure )
 Image
CCD Image (85% size, cropped)
Image details as above
 
 3C 58 Region - Detail
Again no sign of  supernova remnant in this image 
when image is pushed to maximum contrast
 Image
CCD Image (85% size, cropped)
Image details as above
 
3C 58 - Reference Image  (Credit: NASA/CXC/SAO)
https://www.nasa.gov/chandra/multimedia/chandra-15th-anniversary-3c58.html
Image
Reference Image rescaled to same scale as above image
 
 3C 58 Region - Earlier Image (2020-01-18)
Image affected by wind / surface & jet stream, uneven guiding
 Image
CCD Image (85% size, cropped)
5 x 180s exposure (average combine), 3x3 binning, DB Filter
2020-01-18 23:14 UT (#742063-69)
12" LX200R (at f/10.4) + ST-10XME
Attempted auto-guiding using TS 80mm APO, ZWO ASI178MC & PHD2

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Minkowski 1-8 - Planetary Nebula (PN G210.3+1.9)

Minkowski 1-8 in Monoceros was the Deep Sky Challenge Object in Astronomy Now Magazine for Feb 2020
It proved to be quite difficult to track down.   I couldn't find a positional reference in TheSky6 for PN G210.3+1.9, but the finder chart in the magazine (but not the coordinates) implied it had a position that corresponded to planetary nebula PLN 210+ 1.1.

Centering on PLN 210+1.1 coordinates RA 06 53 31.404, Dec +03 12 13.64 (Epoch 2000) no planetary nebula could be seen at that location (absence confirmed by reviewing spectroscopic images.   However  some 3.8' to the south there was a small smudge of light (unnamed in TheSky6) at RA 06 53 33.79, Dec +03 08 26.59 (Epoch 2000) that has a spectrographic signature of a planetary nebula.   This is believed to be Minkowski 1-8.

Minkowski 1-8 (Monoceros)
Ast. Now Deep Sky Challenge Object, Feb 2020
Pl.Neb highlighted by white cross-hairs
Image
Annotated CCD Image (50% size, linear scale)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2020-01-19 23:26 UT (#743015-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Minkowski 1-8 - Detail
(Pl.Neb at centre of cropped image)
Est. Mag +15.1
Image
 CCD Image (150% size, linear scale, cropped)
Image details as above
 
Minkowski 1-8 - Location
(Pl.Neb location believed to be Minkowski 1-8)
Image 
 CCD Image (150% size, linear scale, cropped)
Image details as above
 
Minkowski 1-8 - Spectrographic Image
(created using Star Analyser 2000 diffraction grating)
Image
 CCD Image (100% size, linear scale, rotated, cropped)
5 x 60s exposure (average combine), 2x2 binning, S Filter
2020-01-19 23:32 UT (#743022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
 Negative CCD Image (100% size, linear scale, rotated, cropped)
Image details as above
 

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