David's Astronomy Pages CCD Images - Session 808 (2020-09-13)

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Session Notes

UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq NGC 7722 - Spiral Galaxy with Type Ia Supernova 2020ssf B110 - Dark Nebula UGC 11893 - Spiral Galaxy (PGC 67966) UGC 12430 - Spiral Galaxy (PGC 70734) NGC 7592 - Spiral Galaxy SHK 362 - Faint Compact Galaxy Group (PGC 1589968 et al) C/2019 L3 (ATLAS) - Comet     Variable Stars (photometric monitoring) - SS Cyg, BL Lac - And Z, AM Her, V Sge attempts failed due to cloud/no link     Nearby Stars (astrometric monitoring) - 61 Cyg

- Night session (4.0 hours total) - Main aims of the session were the acquisition of a selection of deep sky targets if conditions allowed.  - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 16°C (min) - CCD Temperature:  -5°C  - Notes from 2020-09-13 >>      -

UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

UGC 6930 with SN 2020rcq (Ursa Major) SN 2020rcq (Type 1a, z=0.002597) discovered 2020/08/09.168 by Zwicky Transient Facility (ZTF))  (Rochester Supernova site | Giancarlo Cortini image | )

UGC 6930 with SN 2020rcq - 2020-09-13 (T+35.7d) Image below (2020-09-13.838) was taken 35.7 days after discovery of SN 2020rcq SN is shown by white cross hairs.  Measured SN magnitude +13.0

Annotated CCD Image (100% size, linear scale, cropped) 120s exposure (single frame), 3x3 binning, C Filter 2020-09-13 20:07 UT (#808003) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020rcq (UGC 6930) on Supernovae 2020 Page >>

UGC 6930 with SN 2020rcq - Earlier Image 2020-09-03 (T+25.8d) Image below (2020-09-03.915) was taken 25.8 days after discovery of SN 2020hvf SN is shown by white cross hairs.  Measured SN magnitude +12.0

Annotated CCD Image (50% size, linear scale) 5 x 120s exposure (average combine), 3x3 binning, C Filter 2020-09-03 21:58 UT (#804067-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 7722 - Spiral Galaxy with Type Ia Supernova 2020ssf

NGC 7722 (Pegasus) SN 2020ssf (Type Ia , zhost=0.013350) , TNS discovered 2020/09/06.252 by Zwicky Transient Facility (ZTF)  (Rochester Supernova site | Andre Mantero image | )

NGC 7722 with neighbouring galaxies NGC 7722 / PGC 71993 (catalog mag +13.3),   PGC 1498368 (catalog mag +17.6), PGC 214970 (catalog mag +17.7), PGC 1496854 (catalog mag +18.0)

Annotated CCD Image (50% size, square root scale) 3 x 120s exposure (average combine), 3x3 binning, C Filter 2020-09-13 20:27 UT (#808011-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7722 with SN 2020ssf -2020-09-13 (T+7.6d) Image below (2020-09-13.852) was taken 7.6 days after discovery of SN 2020ssf SN is shown by white cross hairs.

CCD Image (125% size, square root scale, cropped) Image details as above

NGC 7722 with SN 2020ssf -2020-09-13 (T+7.6d) SN is shown by black cross hairs. SN lies very close to centre of galaxy.

Annotated negative CCD Image (125% size, square root scale, cropped) Image details as above

Images of SN 2020ssf (NGC 7722) on Supernovae 2020 Page >>

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B110 - Dark Nebula

B110 (Scutum) Barnards Dark Nebula Near Ast.Now Deep Sky Challenge B106/B107, Aug 2020)  ( Note : Top right frame is missing from mosaic - it was cancelled to prevent observation from overrunning its time slot ) 3 x 3 Mosaic, FOV 44.4 x 29.3 arc min

CCD Mosaic, 3x3  (27% size, linear scale) Frames  60s exposure (single frame), 3x3 binning, C Filter 2020-09-13 21:02 UT (#808022-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Larger Image (70% size) ] ( See also Internet - http://www.astrosurf.com/buil/gallery/b110/img.htm )

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UGC 11893 - Spiral Galaxy (PGC 67966)

UGC 11893 (Pegasus) Flat Galaxy Atlas Alias:  PGC 67966

Annotated CCD Image  (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-09-13 22:09 UT (#808077-81) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11893 - Detail

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

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

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UGC 12430 - Spiral Galaxy (PGC 70734)

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NGC 7592 - Spiral Galaxy

NGC 7592 (Aquarius) Interacting Galaxy

Annotated CCD Image  (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-09-13 22:09 UT (#808077-81) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7592 - Detail

CCD Image (125% size, square root scale, cropped) Image details as above

Negative CCD Image (125% size, square root scale, cropped) Image details as above

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SHK 362 - Faint Compact Galaxy Group (PGC 1589968 et al)

SHK 362 (Pegasus) Shakhbazian Group Alias: PGC 1589968 et al, III Zw 108

Annotated CCD Image  (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-09-13 23:18 UT (#808098-101) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SHK 362 - Detail

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

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

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C/2019 L3 (ATLAS) - Comet

C/2019 L3 (ATLAS) (passing through Cassiopeia) Sun Distance 5.51 AU  (approaching) Earth Distance 5.08 AU (759.9 million km) (forecast mag +15.4)		C/2019 L3 (ATLAS)  - 2020-09-13, Detail Autoguiding failed on this occasion Comet's rate of motion is small (Ra -27.13 arcsec/hr, Dec 9.87 arcsec/hr)
Annotated CCD Image (50% size, linear scale) 5 x 45s exposure (average combine), 3x3 binning, C Filter 2020-09-13 23:31 UT (#808104-10) 12" LX200R (at f/10.4) + ST-10XME		CCD Image (100% size, linear scale, cropped) Image details as left
Images of C/2019 L3 (ATLAS) on Comets 2020 Page >>

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