David's Astronomy Pages Images - Session 649 (2019-01-22)

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Images (S650)

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Session Notes

38P/Stephan-Oterma - Comet 46P/Wirtanen - Comet     AT2018lcl - Nova in M31     NGC 201 - Spiral Galaxy with SN AT2019yc     UGC 2536 - Spiral Galaxy 4C 25.01 - Quasar        - NGC 3254 with SN 2019np (T+13.4d) attempt failed (poor focusing)      Photometric Monitoring - Variables   - U And, Z And, SY Cnc, R CrB, S Cyg, SS Cyg, U Gem, AM Her, U Her, RZ LMi, BL Lac,  U Mon, CN Ori, FU Ori, DY Per, GK Per, SU Tau, ER UMa     Astrometric Monitoring - Nearby Stars  - HH And, DX Cnc, 61 Cyg, Groombridge 34, EV Lac, Teegardens Star - LAMOST-HVS1, CN Leo attempts failed (no plate solution)

- Night Session (11.7 hours duration) . Session operated in fully automated mode. Session was  monitored over remote connection for first half, but then left to run unattended until dawn.  Sky quality fairly poor with full moon and high clouds reducing sky transparency - Main aim of the session was acquire images of a selection of nearby stars, variable stars and deep sky objects taking advantage of moderate weather conditions. Secondary aim was to test recent  changes and additions to AstroMain program     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  -5°C (minimum)  - CCD Temperature:  -25°C (61% av. power) - Notes from 2019-01-22 >>

38P/Stephan-Oterma - Comet

38P/Stephan-Oterma (passing through Lynx) Sun Distance 1.83 AU Earth Distance 0.90 AU (134.3 million km)

CCD Image (50% size, linear scale) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2019-01-22 23:56 UT (#649340-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

More Images of 38P/Stephan-Oterma

38P/Stephan-Oterma - Earlier Image (2019-01-03) (passing through Lynx) Sun Distance 1.72 AU Earth Distance 0.79 AU (118.6 million km)

CCD Image (50% size, linear scale) 3 x 30s exposure (average combine), 3x3 binning, C Filter 2019-01-03 01:48 UT (#647346-49) 12" LX200R (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC)

CCD Image (50% size, log scale) Image details as above

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46P/Wirtanen - Comet

46P/Wirtanen (passing through Ursa Major) Sun Distance 1.19 AU Earth Distance 0.25 AU (37.5 million km)
CCD Image (50% size, linear scale) 40 x 15s exposure (average combine), 3x3 binning, C Filter 2019-01-23 02:38 UT (#649474-513) 12" LX200R (at f/10.4) + ST-10XME
More Images of 46P/Wirtanen
46P/Wirtanen  - Earlier Image (2018-12-16) (passing through Taurus) Near to point of closest distance from earth Sun Distance 1.06 AU Earth Distance 0.08 AU (11.6 million km)		46P/Wirtanen  - Earlier Detail (2018-12-16)
CCD Image (50% size, linear scale) 15s exposure (single frame), 3x3 binning, C Filter  2018-12-16 21:03 UT (#641184) 12" LX200R  (at f/10.4) + ST-10XME		CCD Image (50% size, log scale) 31 x 15s exposure (average combine), 3x3 binning, C Filter  2018-12-16 21:03 to 21:16 UT (#641184-222) 12" LX200R  (at f/10.4) + ST-10XME (Autoguided on comet using TS 80mm APO + ZWO ASI178MC & PHD2)

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AT2018lcl - Nova in M31 Galaxy

AT2018lcl - Nova in M31  (Andromeda) AT2018lcl, TNS discovered 2018/12/30.855 by Emmanuel Conseil  ( Rochester Extragalactic Novae Page |  Discovery Image ) No definate sign of an object at the position of the earlier nova (marked by white cross-hairs) Image (2019-01-22.79) was taken 22.9 days after discovery The nova has dimmed to > 18th magnitude.

Annotated CCD Image (100% size, cropped) 2 x 120s exposure (average combine), 3x3 binning, C Filter 2019-01-22 19:04 UT (#649058-62) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2018lcl - Earlier Image (2019-01-20) No sign of an object at the position of the earlier nova (indicated white cross-hairs) Image (2019-01-20.89) was taken 21.0 days after discovery Image taken under full moon conditions and doesn't have the  magnitude reach of the earlier image

Annotated CCD Image (100% size, cropped) 4 x 120s exposure (average combine), 3x3 binning, C Filter 2019-01-20 21:21 UT (#648228-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2018lcl - Earlier Image (2019-01-02) Nova is shown in the image below by white cross-hairs. Image (2019-01-02.98) was taken 3.1 days after discovery Estimated Magnitude +17.0 (vs + 15.9 at discovery)

Annotated CCD Image (100% size, cropped) 2 x 120 sec exposure (average combine), 3x3 binning, C Filter 2019-01-02 23:33 UT (#647246-47) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 201 - Spiral Galaxy, with Supernova AT2019yc

NGC 201 & SN 2019yc (Cetus) SN 2019yc  (Type II ?,  host z=0.014728) discovered 2019/01/22.465 by Koichi Itagaki   (Rochester Supernova site |  Discovery Image |  +16.7 at discovery ) Image taken 0.37 days after SN discovery

(with adjacent galaxies NGC 192, NGC 196, NGC 197)

Annotated CCD Image (50% size) 5 x 120s exposure (average combine), 3x3 binning, C Filter 2019-01-22 20:01 UT (#649096-100) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 201 & AT2019yc - 2019-01-22 (T+0.37d) Image (2019-01-22.83) taken 0.37 days after SN discovery. AT2019yc shown in the image below by white cross-hairs.

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

Images of SN 2019yc (NGC 201) on Supernovae 2019 Page >>

NGC 201 - Earlier Image (2014-10-28)

CCD Image (100% size, cropped) 5 x 45s exposure (average combine),  3x3 binning, C Filter 2014-10-28 21:55hUT (#566227-31) 12" LX200R  (at f/10.4) + ST-10XME

NGC 201 & adjacent galaxies / Hickson 7 - Wider View (2014-10-28) NGC 201 +13.6 (catalog mag)  , NGC 192 +12.6 (catalog mag), NGC 196 +14.0 (catalog mag) , NGC 197 +13.7 (catalog mag)

Annotated CCD Image ( cropped) Image details as above

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UGC 2536 - Spiral Galaxy

UGC 2536  (Perseus)

Annotated CCD Image (100% size, cropped, square root scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2019-01-22 20:49 UT (#649151-54) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2536  - Earlier Image (2018-12-04)

CCD Image (100% size, cropped, square root scale) 2 x 180s exposure ( average combine), 3x3 binning, C Filter  2018-12-04 19:41 UT (#640030-31) 12" LX200R  (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC)

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

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

UGC 2536 - Earlier Image (2018-12-04, S639) UGC 2536 (catalog mag +15.6),   PGC 11664 (catalog mag +15.1),  PGC 2182550 (catalog mag +16.8)

Annotated CCD Image (75% size, cropped) 8 x 180s exposure ( average combine), 3x3 binning, C Filter  2018-12-04 00:15 UT (#639034-38 & 639087-89) 12" LX200R  (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC)

UGC 2536  - Earlier Image (2018-08-31)

Annotated CCD Image (75% size, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter  2018-08-31 00:44 UT (#622201-05) 12" LX200R  (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC)

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4C 25.01 - Quasar

4C 25.01  (Andromeda) Other names B2 0017+257,   PGC 2819872 (Catalogue mag +15.4)

Annotated CCD Image (50% size) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2019-01-22 21:14 UT (#649168-70) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

4C 25.01 - Detail

CCD Image (100% size, cropped, square root scale) 2 x 180s exposure ( average combine), 3x3 binning, C Filter  2018-12-04 19:41 UT (#640030-31) 12" LX200R  (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC)

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