David's Astronomy Pages Images - Session 1131 (2023-08-19)

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Session Notes

2P/Encke - Comet  (Attempt) 12P/Pons-Brooks - Comet 237P/LINEAR - Comet C/2020 R7 (ATLAS) - Comet C/2022 L2 (ATLAS) - Comet C/2023 E1 (ATLAS) - Comet     KIC 8462852 - Variable Star (Tabby's Star)     IC 1797 - Spiral Galaxy with Type Ia Supernova 2023nnz M33 - Spiral Galaxy with Transient AT 2023nou M101 - Spiral Galaxy with Type IIL Supernova 2023ixf NGC 2326 - Spiral Galaxy with Type II Supernova 2023pgb NGC 6934 - Globular Cluster (Herschel I-103 / Caldwell 47)     UGC 9350 - Spiral Galaxy with Type Ib Supernova 2023nny       - AT2023cns attempt failed (due to cloud)     Variable Stars (photometric monitoring) - KIC 8462852,       Nearby Stars (astrometric monitoring) -  HH And, Barnards Star   -

- Attempted all night session (4.8 hrs),  ended early due to cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:14.5°C (min) - CCD Temperature:  -10° C - Notes from 2023-08-19 >>     -

2P/Encke - Comet (Attempted Observation)

2P/Encke - 2023-08-20 (passing through Auriga) Sun Distance 1.33 AU Earth Distance 1.30 AU (195.1 million km) Expected position of comet (not visible) is shown by white circle		2P/Encke - 2023-08-20, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 182.35 arcsec/hr, Dec 26.80 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-20 00:40 UT (#1131124-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 6 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-20 00:43 UT (#1131124-30) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 2P/Encke on Comets 2023 Page >> See also Earlier Image(s) of 2P/Encke from 2013 >>

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12P/Pons-Brooks - Comet

12P/Pons-Brooks - 2023-08-19 (passing through Draco) Sun Distance 3.57 AU Earth Distance 3.35 AU (501.6 million km)		12P/Pons-Brooks - 2023-08-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -39.31 arcsec/hr, Dec -19.19 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 23:35 UT (#1131086-92) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 23:35 UT (#1131086-92) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 12P/Pons-Brooks on Comets 2023 Page >>

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237P/LINEAR - Comet

237P/LINEAR - 2023-08-19 (passing through Aquila) Sun Distance 2.13 AU Earth Distance 1.24 AU (186.2 million km)		237P/LINEAR) - 2023-08-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -2.33 arcsec/hr, Dec -8.30 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 22:37 UT (#1131061-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 22:37 UT (#1131061-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 237P/LINEAR on Comets 2023 Page >>

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C/2020 R7 (ATLAS) - Comet

C/2020 R7 (ATLAS) - 2023-08-19  (passing through Corona Borealis) Sun Distance 4.39 AU Earth Distance 4.52 AU (676.1 million km)		C/2020 R7 (ATLAS) - 2023-08-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -5.04 arcsec/hr, Dec -10.36 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 21:58 UT (#1131017-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 21:58 UT (#1131017-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2020 R7 (ATLAS) on Comets 2023 Page >>

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C/2022 L2 (ATLAS) - Comet

C/2022 L2 (ATLAS) - 2023-08-19 (passing through Serpens) Sun Distance 3.42 AU (approaching) Earth Distance 3.46 AU (517.8 million km)		C/2022 L2 (ATLAS) - 2023-08-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -23.30 arcsec/hr, Dec -36.55 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 21:41 UT (#1131007-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 21:44 UT (#1131007-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 L2 (ATLAS) on Comets 2023 Page >>

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C/2023 E1 (ATLAS) - Comet

C/2023 E1 (ATLAS) - 2023-08-19 (passing through Cygnus) Sun Distance 1.30 AU (receeding) Earth Distance 0.38 AU (56.2 million km)		C/2023 E1 (ATLAS) 2023-08-19, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 56.54 arcsec/hr, Dec -319.97 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, Clear Filter 2023-08-19 23:57 UT (#1131100) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 15 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-08-20 00:04 UT (#1131100-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2023 E1 (ATLAS) on Comets 2023 Page >>

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KIC 8462852 - Variable Star (Tabby's Star)

KIC 8462852 / Tabby's Star (Cygnus) Alias: Boyajian's Star, WTF Star ("Where’s the Flux?") Distance 1470 ly. Magnitude +11.7 Star shows large irregular dimmings. KIC 8462852 shown by white cross-hairs

KIC 8462852  - Image (22023-08-19) Measured Mag +11.93 ('V') from CCDSoft Cursor Information

Annotated CCD Image  (50% size, linear scale) 3 x 60s exposure (average combine), 3x3 binning, V Filter 2023-08-19 23:48 UT (#1131095-97) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

KIC 8462852  - Previous Image (2022-05-12) Measured Mag +11.89 (V)

Annotated CCD Image  (50% size, linear scale) 3 x 60s exposure (average combine), 3x3 binning, V Filter 2022-05-12 01:25 UT (#1009094-96) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

KIC 8462852  - Previous Image (2022-03-20) Measured Mag +12.01 (V)

Annotated CCD Image  (50% size, linear scale) 3 x 60s exposure (average combine), 3x3 binning, V Filter 2022-03-20 04:18 UT (#989258-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

KIC 8462852 Links: AAVSO Info : https://www.aavso.org/category/tags/kic-8462852 Unofficial Page for Where's the Flux? Discovery Paper:  1509.03622.pdf (arxiv.org)

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IC 1797 - Spiral Galaxy with Type Ia Supernova 2023nnz

IC 1797 with SN 2023nnz (Aries) SN 2023nnz (Type: Ia) discovered 2023-07-20.592 UT by ATLAS Alias: ATLAS23pes Discovery Magnitude 18.07 ( cyan ATLAS)  ( TNS 2023nnz )

IC 1797 - Spiral Galaxy IC 1797 (catalog mag +14.7) with adjacent galaxies PGC 212977 (catalog mag +16.9) & PGC 3089945 (catalog mag 17.4)

Annotated CCD Image (50% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-20 00:26 UT (#1131117-21) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 1797 with SN 2023nnz - 2023-08-20 (T+30.4d) Image below (2023-08-20.013) was taken 30.4 days after discovery of 2023nnz Position of reported transient (not distinguishable) is indicated by white cross-hairs. Measured Magnitude +14.86 (nucleus + ? SN)

Annotated CCD Image (175% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 22:58 UT (#1131072-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023nnz (in IC 1797) on Supernova 2023 Page >>

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M33 - Spiral Galaxy with Transient AT 2023nou

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M101 - Spiral Galaxy with Type IIL Supernova 2023ixf

M101 with SN 2023ixf (Ursa Major) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki Alias: ZTF23aaklqou, AT2023iyi, AT2023jgd, AT2023jfz, PSN J14033858+5418421, PS23dij Discoverer Mag 14.9 (Clear filter)  ( Rochester Supernova site | TNS 2023ixf )

M101 with SN 2023ixf - 2023-08-19 (T+92.2d) Image below (2023-08-19.964) was taken 92.2 days after discovery of 2023ixf Position of supernova (still distinct but slowly fading) is shown by white cross-hairs Measured Magnitude +13.19

Annotated CCD Image (100% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 23:11 UT (#1131079-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023ixf (M101) on Supernova 2023 Page

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NGC 2326 - Spiral Galaxy with Transient AT 2023pgb

NGC 2326 with SN 2023pgb (Lynx) SN 2023pgb (Type: II) discovered 2023-08-12.496 UT by ZTF Alias: ZTF23aaxdfya Discovery Magnitude 17.44 ( r-ZTF)  ( TNS 2023pgb )

NGC 2326 with SN 2023pgb - Spiral Galaxy (T+7.5d) NGC 2326 (Alias  PGC 20218, catalog mag +13.3) with adjacent galaxy NGC 2326A (Alias  PGC 20237, catalog mag +15.4)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-20 01:01 UT (#1131133-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2326 with SN 2023pgb - 2023-08-20 (T+7.5d) Image below (2023-08-20.037) was taken 7.5 days after discovery of 2023pgb Position of reported SN (distinct) is indicated by white cross-hairs. Measured Magnitude +17.22

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-20 01:01 UT (#1131133-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (150% size, square root scale, cropped) Image as above

Images of SN 2023nnz (in NGC 2326) on Supernova 2023 Page >>

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NGC 6934 - Globular Cluster (Herschel I-103 / Caldwell 47)

NGC 6934 (Delphinus) Alias: Herschel I-103 / Caldwell 47 Deep Sky Challenge object, AstNow Sep 2023  [ Caldwell Objects ]  [ Herschel 400 Objects ] [ Deep Sky Challanges (Ast.Now) ] [ Globular Star Clusters ]

CCD Image (100% size, square root scale, cropped) 4 x 30s exposure (average combine), 2x2 binning, Clear Filter 2023-08-19 22:22 UT (#1131046-57) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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

NGC 6934 - Earlier Image (Oct 2018)

CCD Image (100% size, cropped, log scale) 8 x 30s exposure (medium combine), 2x2 binning, C Filter 2018-10-20 19:37h UT (#632022-32) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6934 - Earlier Image (Nov 2017)

CCD Image (100% size, cropped) 3 x 20s exposure (average combine), 3x3 binning, C Filter 2017-11-02 21:31h UT (#603225-32) 12" LX200R  (at f/10.4) + ST-10XME

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UGC 9350 - Spiral Galaxy with Type Ib Supernova 2023nny

UGC 9350 with SN 2023nny (Bootes) SN 2023nny (Type: Ib) discovered 2023-07-20.221 UT by ALeRCE Alias: ZTF23aaszwst Discovery Magnitude 17.72 ( g-ZTF Filter) vs Last Non Detection 20.49 limiting mag  ( TNS 2023nny )

UGC 9350 with SN 2023nny - 2023-08-19 (T+30.7d) Image below (2023-08-19.951) was taken 30.7 days after discovery of 2023nny Position of reported transient (not distinguishable) is indicated by white cross-hairs. Measured Magnitude +14.99 (nucleus + SN)

Annotated CCD Image (175% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-19 22:58 UT (#1131072-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023nny (in UGC 9350) on Supernova 2023 Page >>

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