David's Astronomy Pages CCD Images - Session 973 (2022-02-20)

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67P/Churyumov-Gerasimenko - Comet C/2019 L3 (ATLAS) - Comet     Nova Cas 2021 - Nova (V1405 Cas)     AT2021rl - BL Type Transient (QSO 0954+658) AT2021bfp - Type QSO Transient (attempt) AT2021kkh - Type Nova? Transient (attempt) AT2022bqs - CV Type Transient AT2022cml - Transient     M31 - Spiral Galaxy with Transient AT2021aaxp (attempt)     NGC 5117 - Spiral Galaxy with Type II Supernova 2022abq NGC 5273 - Spiral Galaxy (H I-98) with Type AGN Transient AT2022csj NGC 5732 - Spiral Galaxy with Type Ia Supernova 2021agpf     UGC 522 - Spiral Galaxy with Type Ic-BL Supernova 2022bqt UGC 3457 - Spiral Galaxy with Type Ia Supernova 2022blm UGC 8012 - Spiral Galaxy with Type 1a-pec Supernovae 2022aod (attempt)      Variable Stars (photometric monitoring) - BL Lac, ER UMa      Nearby Stars (astrometric monitoring) - HH And (Ross 248), Groombridge 34

- Early evening session 6.5 hours - Session cut short by development of clouds (expected)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -4°C (min) - CCD Temperature:  -25°C - Notes from 2022-02-20 >>    [ Local Files >> ]

67P/Churyumov-Gerasimenko - Comet

67P/Churyumov-Gerasimenko (passing through Cancer) Sun Distance 1.78 AU (receeding) Earth Distance 0.86 AU (128.9 million km)		67P/Churyumov-Gerasimenko - 2022-02-20, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -1.81 arcsec/hr, Dec -13.42 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2022-02-20 20:07 UT (#973028-30) 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) 15 x 45s exposure (average combine), 3x3 binning, C Filter 2022-02-20 20:13 UT (#973028-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 67P/Churyumov-Gerasimenko on Comets 2022 Page >>

67P/Churyumov-Gerasimenko - False Colour Image(s)  Inverse Spectrum

67P/Churyumov-Gerasimenko - 2022-02-20

False Colour CCD Image (70% size, log scale) 15 x 45s exposure (average combine), 3x3 binning, C Filter 2022-02-20 20:13 UT (#973028-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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C/2019 L3 (ATLAS) - Comet

C/2019 L3 (ATLAS) (passing through Gemini) Sun Distance 3.58 AU (receeding) Earth Distance 2.90 AU (433.8 million km)		C/2019 L3 (ATLAS)  - 2022-02-20, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -8.14 arcsec/hr, Dec -27.81 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2022-02-20 19:53 UT (#973017-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2022-02-20 19:55 UT (#973017-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 L3 (ATLAS) on Comets 2022 Page >>

C/2019 L3 (ATLAS) - False Colour Image Inverse Spectrum

C/2019 L3 (ATLAS)  -  2022-02-20

False Colour CCD Image (70% size, log scale) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2022-02-20 19:55 UT (#973017-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT2021hkn, V1405 Cas

Nova Cas 2021 - 2022-02-20 (T+339.4d) Image below (2022-02-20.872) was taken 339.4 days after discovery of Nova is shown by white cross hairs.  Measured magnitude +9.94 (linked with Detection Threshold = 30

Annotated CCD Image (100% size, linear scale, cropped) 4 x 30s exposure (average combine), 3x3 binning, C Filter 2022-02-20 20:58 UT (#973063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-20 (T+339.4d)

Spectra produced in AstroMain using Image taken with Star Analyser 200 5 x 45s exposure (average combine), 2x2 binning, S Filter 2022-02-20 21:02 UT (#973068-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Cas 2021 on Novae Page >>

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AT2021rl - BL Type Transient (QSO 0954+658)

AT2021rl (Ursa Major) BL Type Transient, QSO 0954+658, 6C 095456+654857 AT2021rl (Type: BL) discovered 2021/01/06.449 UT by Gaia Alias: Gaia21acz ( Gaia21acz )

AT2021rl - 2022-02-21 (T+410.6d) Image below (2022-02-21.022) was taken 410.6 days after discovery of 2021rl BL Type object shown by white cross hairs. Measured magnitude +15.08  (vs catalog mag of +15.5)

Annotated CCD Image  (100% size, linear scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-21 00:37 UT (#973166-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT2021rl  (QSO 0954+658) on Type BL Transients Page >>

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AT2021bfp - Type QSO Transient (attempted observation)

AT2021bfp (Canes Venatici) AT2021bfp (Type: QSO) discovered 2021/01/25.892 UT by XOSS Alias: XM42HT  (Rochester Supernova site | TNS 2021bfp )

AT2021bfp - 2022-02-20 (T+391.1d) Image below (2022-02-20.957) was taken 391.1 days after discovery of 2021bfp Position of SN (not visible) is shown by white circle

Annotated CCD Image (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-20 23:03 UT (#973131-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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AT2021kkh - Type Nova? Transient (Attempted Observation)

AT2021kkh (Orion) AT2021kkh (Type: Nova?) discovered 2021/04/22.918 UT by BraTS Alias: BraTS-SON-T2-026 [ TNS 2021kkh ]

AT2021kkh - 2022-02-20 (T+303.9d) Image below (2022-02-20.797) was taken 303.9 days after discovery of 2021kkh Position of earlier transient (no longer visible) is shown by white circle (previous images taken in S942, S958 but not yet analysed The earliest image of these (2021-12-17) is still several months after discovery)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-20 19:17 UT (#973003-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2021kkh - Reference Image (DSS2 Color) No object is visible in DSS2 image at rthe eported transient position (shown by purple cross hairs)

DSS2 Image, screen captured via Aladin

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AT2022bqs - CV Type Transient

AT2022bqs (Canis Major) AT2022bqs (Type: CV) discovered 2022-02-08.290 UT by ASAS-SN Alias: ASASSN-22bs Bright CV candidate, could also be a Galactic Nova Discovery magnitude +12.2  ( Rochester Supernova site | TNS 2022bqs  )

AT2022bqs (CV) - 2022-02-20 (T+12.6d) Image below (2022-02-20.851) was taken 12.6 days after discovery of 2022bqs Transient is indicated by white cross-hairs Measured magnitude +14.58

CCD Image  (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2022-02-14 22:03 UT (#971013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2022bqs  - Reference Image (DSS2 Color) Position of reported transient is shown by purple cross hairs.   No object evident at transient position in this historic image.

DSS2 Image, screen captured via Aladin

Images of AT2022bqs on Type CV Transients Page >>

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AT2022cml - Transient

AT2022cml (Leo) AT2022cml (Type: HPM) discovered 2022-02-12.444 UT by ZTF Alias: ZTF22aaajkdl Discovery magnitude  12.39  ( Rochester Supernova site | TNS 2022cml )

AT2022cml - 2022-02-20 (T+8.5d) Image below (2022-02-20.994) was taken 8.5 days after discovery of 2022cml Position of Transient (bright) is indicated by white cross-hairs Measured Mag +12.1

CCD Image  (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-21 00:00 UT (#973151-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2022cml  - Reference Image (DSS2 Color) Position of reported transient is shown by purple cross hairs.   No object is evident in DSS2 image or in Smbad at reported position

DSS2 Image, screen captured via Aladin

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M31 - Spiral Galaxy with EGN 2022cpe (AT2021aaxp),  attempted observation

M31 with Nova2022cpe (Andromeda) AT2022cpe (Type: EGN) discovered 2022-02-16.423 UT by Koichi Itagaki Alias: XM65MZ, PNV J00425751+4059043 Magnitude at discovery 16.0  ( Rochester EGN Page | Itagaki discovery image ) Region with reported EGN transient (not visible) is shown by white circle

Annotated CCD Image  (50% size, square root scale) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-13 19:10 UT (#941055-59) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with Nova2022cpe - 2022-02-20 (T+4.5d) Image below (2022-02-20.906) was taken 4.5 days after discovery of 2022cpe Position of reported EGN  transient (not visible) is shown by white cross-hairs The EGN (mag +16.0 at discovery has evidently faded very quickly.

Annotated CCD Image (100% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2022-02-20 21:53 UT (#973093) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 5117 - Spiral Galaxy with Type II Supernova 2022abq

NGC 5117 with SN2022abq (Canes Venatici) SN 2022abq (Type: II) discovered 2022-01-21.050 UT by F. Cappiello, S. Massaro Alias: Ric7-2022abqGBObs, ATLAS22cks  (Rochester Supernova site | TNS 2022abq )

NGC 5117 with SN2022abq - 2022-02-20 (T+30.8d) Image below (2022-02-20.888) was taken 30.8 days after discovery of 2022abq Position of SN is shown by white cross-hairs Measured magnitude +15.82

Annotated CCD Image  (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-20 21:28 UT (#973082-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022abq (NGC 5117) on Supernovae 2022 Page

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NGC 5273 - Spiral Galaxy (Herschel I-98) with Type AGN Transient AT2022csj

NGC 5273 with AT2022csj (Canes Venatici) AT2022csj (Type: AGN) discovered 2022-02-12.503 UT by ZTF Alias: ZTF18aabkvav  (Rochester Supernova site | TNS 2022csj )

NGC 5273 (Alias: Herschel I-98) NGC 5273 (catalog mag +11.5 or +12.5) with adjacent galaxy  NGC 5276 / PGC 48542 (catalog mag +13.9 or +15.1) [ Herschel 400 Objects ]

Annotated CCD Image (50% size, square root scale) 180s exposure (single frame), 3x3 binning, C Filter 2022-02-20 23:20 UT (#973138) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5273 (Alias: Herschel I-98) - Detail

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

NGC 5273 with AT2022csj - 2022-02-20 (T+8.5d) Image below (2022-02-20.964) was taken 8.5 days after discovery of 2022csj Position of reported AGN is shown by white cross-hairs Measured magnitude +13.52

Annotated CCD Image  (125% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2022-02-20 23:20 UT (#973138) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT2022csj (NGC 5273) on Transients 2022 Page >>

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NGC 5732 - Spiral Galaxy with Type Ia Supernova 2021agpf

NGC 5732 with SN2021agpf (Bootes) SN 2021agpf (Type: Ia) discovered 2021-12-26.624 UT by ATLAS Alias: ATLAS21bnoc  ( Rochester Supernova site | TNS 2021agpf )

NGC 5732 with SN2021agpf - 2022-02-20 (T+56.4d) Image below (2022-02-20.978) was taken 56.4 days after discovery of 2021agpf Position of SN (bright) is shown by white cross-hairs Measured magnitude +16.23

CCD Image (125% size,square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-20 23:41 UT (#973145-47) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021agpf (NGC 5732) on Supernovae 2021 Page

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UGC 522 - Spiral Galaxy with Type Ic-BL Supernova 2022bqt

UGC 522 with SN2022bqt (Andromeda) SN 2022bqt (Type: Ic-BL) discovered 2022-02-08.235 UT by ATLAS Alias: ATLAS22ffi Discovery Magnitude +18.40  (Rochester Supernova site, TNS 2022bqt )

UGC 522 with SN2022bqt - 2022-02-21 (T+12.8d) Image below (2022-02-21.008) was taken 12.8 days after discovery of 2022bqt Position of reported transient (faint / difficult to see) is shown by white cross-hairs. (poor quality image due to low sky transparency/high cloud)

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-21 00:22 UT (#973159-63) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022bqt (UGC 522) on Supernovae 2022 Page >>

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UGC 3457 - Spiral Galaxy with Type Ia Supernova 2022blm

UGC 3457 with SN2022blm (Monoceros) SN 2022blm (Type: Ia) discovered 2022-02-05.301 UT by LOSS Alias: KAIT-22A Discovery magnitude +16  ( Rochester Supernova site | TNS 2022blm )

UGC 3457 with SN2022blm - 2022-02-20 (T+15.5d) Image below (2022-02-20.812) was taken 15.5 days after discovery of 2022blm Position of SN (faint) is indicated by white cross-hairs

CCD Image  (150% size, log scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-20 19:38 UT (#973010-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022blm (UGC 3457) on Supernovae 2022 Page

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UGC 8012 - Spiral Galaxy with Type 1a-pec Supernovae 2022aod (attempted observation)

UGC 8012 with AT2022aod (Canes Venatici) AT2022aod (Type: unk) discovered 2022-01-27.597 UT by PS1 Alias: PS22xr  (Rochester Supernova site | TNS 2022aod )

UGC 8012 with SN2022aod - 2022-02-20 (T+34.3d) Image below (2022-02-20.931) was taken 34.3 days after discovery of 2022aod Position of SN (not visible) is shown by white cross-hairs

Annotated CCD Image  (175% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2022-02-20 22:26 UT (#973116-18) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022aod (UGC 8012) on Supernovae 2022 Page >>

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