David's Astronomy Pages Images - Session 1217 (2024-05-15)

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Images (S1218)

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Session Notes

C/2021 S3 (PANSTARRS) - Comet C/2022 E2 (ATLAS) - Comet C/2023 A3 (Tsuchinshan-ATLAS) - Comet     AT 2023udd - CV Type Transient (attempt) AT 2024crd - Type Nova? Transient     M31 - Spiral Galaxy with Transient AT 2024ikt (Attempt)     NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk NGC 3690 - Spiral Galaxy with Type IIb Supernova 2024gzk NGC 5466 - Globular Cluster (H VI-9) NGC 5876 - Spiral Galaxy with Type II Supernova 2024igg NGC 6004 - Spiral Galaxy with Type II Supernova 2024cld     UGC 8139 - Spiral Galaxy with Type Ia Supernova 2024ifu     Variable Stars (photometric monitoring) - BL Lac      Nearby Stars (astrometric monitoring) - None

- All-Night Session (3.7 hrs)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 7°C (min) - CCD Temperature:   -10°/-15° C - Notes from 2024-05-15 >>     -

Observing Result

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C/2021 S3 (PANSTARRS) - Comet

C/2021 S3 (PANSTARRS) - 2024-05-16 (passing through Cygnus) Sun Distance 1.87 AU (receeding) Earth Distance 1.67 AU (250.2 million km)		C/2021 S3 (PANSTARRS) - 2024-05-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 22.54 arcsec/hr, Dec 65.97 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 00:22 UT (#1217062-63) 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) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 00:25 UT (#1217062-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2021 S3 (PANSTARRS) on Comets 2024 Page >>

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C/2022 E2 (ATLAS) - Comet

C/2022 E2 (ATLAS) - 2024-05-15 (passing through Gemini) Sun Distance 3.82  AU (approaching) Earth Distance 4.45 AU (665.9 million km)		C/2022 E2 (ATLAS) - 2024-05-15 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 5.77 arcsec/hr, Dec 10.01 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-05-15 22:41 UT (#1217007-13) 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) Image details as left
Images of C/2022 E2 (ATLAS) on Comets 2023 Page >>
Images of C/2022 E2 (ATLAS) on Comets 2024 Page >>

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C/2023 A3 (Tsuchinshan-ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - 2024-05-15 (passing through Virgo) Sun Distance 2.56 AU (approaching) Earth Distance 1.75 AU (262.5 million km)		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-05-15 Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -100.04 arcsec/hr, Dec 17.42 arcsec/hr)
Annotated CCD Image (50% size, log scale) 60s exposure (single frame), 3x3 binning, Clear Filter 2024-05-15 23:04 UT (#1217023) 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) 11 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-05-15 23:10 UT (#1217023-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
C/2023 A3 (Tsuchinshan-ATLAS) - 2024-05-15		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-05-15
False Color CCD Image (50% size, log scale) 11 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-05-15 23:10 UT (#1217023-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		False Color CCD Image (100% size, log scale, cropped) Image details as left
Images of C/2023 A3 Tsuchinshan-ATLAS on Comets 2024 Page >>

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AT 2023udd - CV Type Transient (Attempt)

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AT 2024crd - Type Nova? Transient

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M31 - Spiral Galaxy with Transient AT 2024ikt (Attempt)

M31 with AT 2024ikt (Andromeda) AT 2024ikt (Type: unk) discovered 2024-05-07.489 UT by ZTF Alias: ZTF24aamrdsj Discovery Mag 18.4 (r-ZTF filter)  ( Rochester Supernova site | TNS 2024ikt )

M31 with AT 2024ikt Image taking with secondary scope showing position of reported transient (blue circle) relative to outline of M31 galaxy (white ellipse) & M31 Galaxy centre (labelled)

CMOS Image (16% size) 10s exposure (stacked), 1x1 binning 2024-05-16 00:41 UT (01:41 LT), Cam2_Ref TS 80mm APO, ZWO ASI178MC & PHD2

M31 with AT 2023ax(T+35.5d) Position of reported transient is shown by white circle

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 00:50 UT (#1217076-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with AT 2024ikt - 2024-05-16 (T+8.5d) Image below (2024-05-16.029) was taken 8.5 days after discovery of 2024ikt Position of reported transient (not visible) is shown by white circle

Annotated CCD Image (125% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 00:50 UT (#1217076-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024ikt (in M31) on Transients 2024 Page >>

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NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk

NGC 3690 with SN 2023wrk (Ursa Major) SN 2023wrk (Type: Ia) discovered 2023-11-04.229 UT by GOTO Alias: GOTO23bdo, ZTF23abpbdfm, ATLAS23vna Discovery Magnitude 18.11 (L-GOTO filter)  ( Rochester Supernova site ) ( TNS 2023wrk )

NGC 3690 with SN 2023wrk - 2024-04-18 (T+193.8d) Image below (2024-05-16.05) was taken 193.8 days after discovery of 2023wrk Position of SN (very faint) is shown by white cross-hairs Measured Magnitude +17.12 (C Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 01:16 UT (#1217083-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023wrk (in NGC 3690) on Supernovae 2023 Page >>

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NGC 3690 - Spiral Galaxy with Type IIb Supernova 2024gzk

NGC 3690 with SN 2024gzk (Ursa Major) SN 2024gzk (Type: IIb) discovered 2024-04-12.349 UT by ZTF Alias: ZTF19abgbbzy Discovery Magnitude 17.78 (L-GOTO filter) ( TNS 2024gzk )

NGC 3690 with SN 2024gzk - 2024-05-16 (T+33.7d) Image below (2024-05-16.047) was taken 33.7 days after discovery of 2024gzk Position of SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 01:16 UT (#1217083-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023wrk (in NGC 3690) on Supernovae 2023 Page >>

Images of SN 2024gzk (in NGC 3690) on Supernovae 2024 Page >>

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NGC 5466 - Globular Cluster (H VI-9)

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NGC 5876 - Spiral Galaxy with Type II Supernova 2024igg

NGC 5876 with SN 2024igg (Bootes) SN 2024igg (Type: II) discovered 2024-05-07.304 UT by ALeRCE Alias: ZTF24aamlalc Discovery Magnitude 17.76 (g-ZTF Filter) ( TNS 2024igg )

NGC 5876 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 01:34 UT (#1217090-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5876 with SN 2024igg - 2024-05-16 (T+8.8d) Image below (2024-05-16.060) was taken 8.8 days after discovery of 2024igg Position of SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 01:34 UT (#1217090-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024igg (in NGC 5876) on Supernovae 2024 Page >>

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NGC 6004 - Spiral Galaxy with Type II Supernova 2024cld

NGC 6004 with SN 2024cld (Serpens) SN 2024cld (Type: II) discovered 2024-02-13.228 UT by GOTO Alias: GOTO24ql, ATLAS24clv Discovery Magnitude 17.97 ( Clear Filter) Spectrum contains clear narrow H Balmer and He II 4686A flash ionisation features typically seen in young type II SNe  ( TNS 2024cld )

NGC 6004 with SN 2024cld - 2024-05-15 (T+92.8d) Image below (2024-05-15.998) was taken 92.8 days after discovery of 2024cld Position of reported SN (distinct, fading slowly) is indicated by white cross-hairs. Measured Magnitude +15.84 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 00:06 UT (#1217055-59) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024cld (in NGC 6004) on Supernova 2024 Page >>

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UGC 8139 - Spiral Galaxy with Type Ia Supernova 2024ifu

UGC 8139 with SN 2024ifu (Canes Venatici) SN 2024ifu (Type: Ia) discovered 2024-05-07.289 UT by ATLAS Alias: ZTF24aalqrpc Discovery Magnitude 17.53 (g-ZTF Filter) ( TNS 2024ifu )

UGC 8139 with SN 2024ifu - 2024-05-15 (T+8.7d) Image below (2024-05-15.983) was taken 8.7 days after discovery of 2024ifu Position of SN (faint / not separately distinguishable) is shown by white cross-hairs Measured Magnitude (nucleus + SN) +15.46 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-15 23:44 UT (#1217048-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024ifu (in UGC 8139) on Supernovae 2024 Page >>

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