David's Astronomy Pages
CCD Images - Session 680 (2019-08-08)

Objects Session Notes
Bullet C/2018 W2 (Africano) - Comet
   
Bullet IC 5217 - Planetary Nebula
   
Bullet NGC 6835 - Spiral Galaxy
   
Bullet Variable Stars (photometric monitoring)
  - RX And, U And, Z And, CY Aqr,SS Cyg, AM Her, U Her, BL Lac, CY Lyr, FG Sge, V Sge, WZ Sge
   
Bullet Nearby Stars (astrometric monitoring)
 - HH And, Barnards Star, 61 Cyg, Groombridge 34, EV Lac

    
   
- All-night session,  Duration 4.5hr

Session operated in fully automated mode, with minimal monitoring.

- Main aim of the session was general observing with mix of variable stars, nearby stars, comets and deep sky targets. 
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature:  8.0°C (min), outdoors, 10.0°C (min), observatory
- CCD Temperature:  -15°C  (75% av. power)
  (last 4 targets -19°C  (100% av. power) )
- Notes from 2019-08-08 >>
    
   

C/2018 W2 (Africano) - Comet

C/2018 W2 (Africano)
 (passing through Camelopardalis)

Sun Distance 1.51 AU
Earth Distance 1.56 AU (233.5 million km)
   C/2018 W2 (Africano) - Detail


Image   Image
CCD Image (50% size)
6 x 45s exposure (average combine), 3x3 binning, C Filter
2019-08-09 00:23 UT (#680143-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  CCD Image (100% size, linear scale, cropped)
Image details as left


      
    More Images of C/2018 W2 (Africano)    

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IC 5217 - Planetary Nebula

IC 5217 (Lacerta)
Ast. Now  DeepSky Challenge Object, August 2019
Image
CCD Image (50% size)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2019-08-09 00:33 UT (#680152-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   
IC 5217 - Detail
Even at closer view IC 5217 still looks very star like.
Image
CCD Image (150% size, linear scale, cropped)
Image details as above
  
IC 5217 - Spectra
Only when viewed with a spectral grating can IC 5217's planetary nebula characteristics be recognised
Compare spectra of IC 5217 (with two main emission lines)
with the broad emission spectra of a normal star
Image
CCD Image (150% size, rotated, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, S Filter
2019-08-09 00:41 UT (#680158-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
IC 5217 - Spectra Detail
Zero order spectra to left. First order spectra to right.
Image
CCD Image (150% size, rotated, linear scale, cropped)
Image details as above
  

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NGC 6835 - Spiral Galaxy

This object (a nice edge on spiral galaxy) was imaged by accident. The planned target was the open cluster NGC 6885 (H VIII-20), but had been entered as NGC 6835 in my Targets database.

NGC 6835 (Vulpecula)
Image
CCD Image (50% size)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2019-08-08 23:17 UT (#680065-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   
NGC 6835  - Detail
Image
CCD Image (100% size, linear scale, cropped)
Image details as above
  

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