David's Astronomy Pages CCD Images - Session 748 (2020-01-28)

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Session Notes

Basel 8 - Open Cluster     Biur 7 - Open Cluster Biur 9 - Open Cluster Biur 12 - Open Cluster     Jonckheere 900 - Planetary Nebula Minkowski 1-8 - Planetary Nebula (PN G210.3+1.9)     Variable Stars (photometric monitoring)   - RR Tau, FU Orio     Nearby Stars (astrometric monitoring)  - None

- Late evening session (2.7 hours total). - Main aims of the session was to test new features in AstroMain program and acquire a selection of deep sky objects if sky conditions allowed     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  -1°C (min) (Dew heaters on auto) - CCD Temperature:  -25°C  (67% av. power) - Notes from 2020-01-28 >>

Basel 8 - Open Cluster

Basel 8 (Monoceros) SAC Basel 8, Saguaro Astronomy Club Database Its unclear where the center of Basel 8 cluster is, though star density seems to be higher on the right hand side of the image. Target needs to be re-imaged in a follow-up session using Secondary Scope  with its wider field of view

CCD Image (70% size, linear scale) 6 x 30s exposure (average combine), 3x3 binning, C Filter 2020-01-28 21:53 UT (#748049-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Biur 7 - Open Cluster

Biur 7 (Monoceros) SAC Biur 7, Saguaro Astronomy Club Database Biurakan (or Byurakan) comes from the Armenian observatory (BAO). Picture below was intended as a wider field image that could demonstrate where the center of Bier 7 clustering was located.   The colour livestack picture doesn't shown enough detail to be useful.

CMOS Colour Image (16% size)  27 x 10s (livestack), 1x1 binning,  Gain 200, Raw16 2020-01-28 20:54 UT (Set 1, SharpCap LiveStack, Stretched) ASI178MC (OSC) + TS 80mm f/6 APO, mounted on 12" LX200R

Biur 7 - Detail The following b/w picture image created by restacking individual FITS frames shows more detail

CMOS B/W Image (16% size, linear scale)  27 x 10s (average combine), 1x1 binning,  Gain 200, Raw16 2020-01-28 20:54 UT (Set 1, SharpCap LiveStack, Stretched) ASI178MC (OSC) + TS 80mm f/6 APO, mounted on 12" LX200R [ Larger Image, 32% size ]

White rectangle shows the position of earlier narrower field image of Buir 7 taken on 2020-01-26

Annotated CMOS B/W Image (16% size, linear scale)  Image details as above

Cropped and redisplayed at same scale as earlier narrower field image of Buir 7 taken on 2020-01-26

CMOS B/W Image (50% size, cropped)  Image details as above

Biur 7 - Earlier Image (2020-01-26) It was unclear exactly where the the center of Biur 7 star clustering from this earlier image With the information from the wider view picture it seems most likely that Biur 7 lies just left of the image centre.

CCD Image (70% size, linear scale) 8 x 30s exposure (average combine), 3x3 binning, C Filter 2020-01-26 22:28 UT (#746043-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Biur 9 - Open Cluster

Biur 9 (Monoceros) SAC Biur 9, Saguaro Astronomy Club Database Biurakan (or Byurakan) comes from the Armenian observatory (BAO). Picture below was intended as a follow-up wider field image that could demonstrate where the center of Bier 9 clustering was located.   Due to cloud / star align issue only 4 frames were able to be collected and the depth of the image is less not sufficient to answer the question.

CMOS B/W Image (16% size, linear scale)  4 x 10s (average combine), 1x1 binning,  Gain 200, Raw16 2020-01-28 21:06 UT (Set 1, SharpCap LiveStack, Stretched) ASI178MC (OSC) + TS 80mm f/6 APO, mounted on 12" LX200R

Biur 9 - Earlier Image (2020-01-26) It was unclear exactly where the the center of Biur 9 star clustering was from this earlier image With the information from the new wider view picture (above) the question is still unanswered.

CCD Image (70% size, linear scale) 6 x 30s exposure (average combine), 3x3 binning, C Filter 2020-01-26 22:56 UT (#746067-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Biur 12 - Open Cluster

Biur 12 (Monoceros) SAC Biur 12, Saguaro Astronomy Club Database Biurakan (or Byurakan) comes from the Armenian observatory (BAO). Clustering believed to be Biur 12 cluster lies on the right hand side of image Bright star at top of image is HIP 32872 (mag +6.97)

CCD Image (70% size, linear scale) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2020-01-28 21:16 UT (#748040-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Biur 12 - Detail View of clustering believed to be the Open Cluster Biur 12

CCD Image (100% size, linear scale, cropped) Image details as above

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Jonckheere 900 - Planetary Nebula

Jonckheere 900 (Gemini) Gemini curios object, Ast.Now, Feb 2020, p74 Ast.Now Deep Sky Challenge Object Jan 2024 Jonckheere 900 is highlighted by the white cross-hairs [ Deep Sky Challanges (Ast.Now) ]  [ Planetary Nebula ]

Annotated CCD Image (50% size, square root scale) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2020-01-28 20:16 UT (#748003-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Jonckheere 900 - Detail Jonckheere 900 appears very stellar like in this closer view. It's planetary nebula nature becomes only becomes evident when examined with spectroscopy (see below)

CCD Image (100% size, square root scale, cropped) Image details as above

Jonckheere 900 star field viewed with Star Analyser 200 diffraction grating

CCD Image (35% size, linear scale) 3 x 90s exposure (average combine), 2x2 binning, S Filter 2020-01-28 20:25 UT (#748011-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Jonckheere 900's planetary nature revealed Image from diffraction grating showing distinct signature of a planetary nebula with light concentrated at two particular wavelengths

CCD  Image (100% scale, linear scale, cropped) Image details as above

CCD  Image (100% scale, linear scale, cropped, alternative contrast.) Image details as above

CCD  Image (100% scale, log scale, cropped) Image details as above

Reference Image Stars through C Filter displayed at same scale & same image rotation  (150% scale, square scale, rotated, cropped) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2020-01-28 20:16 UT (#748003-09)

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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, but was eventually found in an earlier session as a small smudge of light (unnamed in TheSky6) at RA 06 53 33.79, Dec +03 08 26.59 (Epoch 2000) and confirmed by spectrographic imaging as a planetary nebula (see  Minkowski 1-8, 2020-01-19 S743)

An attempt to collect further images of Minkowski 1-8 in this session were thwarted by cloud and only one frame was useable. Even then the nebula is barely visible due to poor sky transparency.

Minkowski 1-8 (Monoceros) Ast. Now Deep Sky Challenge Object, Feb 2020 (Pl.Neb at centre of cropped image)

CCD Image (150% size, linear scale, cropped) 60s exposure (single frame), 3x3 binning, C Filter 2020-01-28 22:01 UT (#748059) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Minkowski 1-8 - Earlier Image (2020-01-19) (Pl.Neb at centre of cropped image) Est. Mag +15.1

CCD Image (150% size, linear scale, cropped) 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

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