David's Astronomy - Images 2023-01-29 (S01094)

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

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Images
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Objects Session Notes

29P/Schwassmann-Wachmann - Comet

AT 2023nf - CV Type Transient

IC 418 - Planetary Nebula (Raspberry Nebula)

NGC 2281 - Open Cluster (H VIII-71)

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

-   attempt failed (due to cloud)

Variable Stars (photometric monitoring)

- None



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)

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 >>

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

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 >>

IC 418 - Planetary Nebula (Raspberry Nebula)

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

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

Annotated CCD Image (150% size, log scale, cropped)
Image details as above

IC 418 Spectra

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

IC 418 - Earlier Image (2007)

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

NGC 2281 - Open Cluster (H VIII-71)

NGC 2281 \ H VIII-71 (Auriga)

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

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)

Colour CMOS Image (53% size, asinh stretched, cropped)
Image details as above

NGC 2281 - Earlier CCD Image (Feb 2019)

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

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 ?)

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 >>