David's Astronomy Pages Images - Session 1218 (2024-05-16)

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Images (S1219)

Objects

Session Notes

29P/Schwassmann-Wachmann - Comet     AT 2024qe - CV Type Transient     NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk NGC 3690 - Spiral Galaxy with Type IIb Supernova 2024gzk NGC 5876 - Spiral Galaxy with Type II Supernova 2024igg NGC 6004 - Spiral Galaxy with Type II Supernova 2024cld NGC 6106 - Spiral Galaxy with Type Ib Supernova 2024ahv NGC 6433 - Spiral Galaxy with Type Ia Supernova 2024efn     UGC 8630 - Spiral Galaxy with Type II Supernova 2024drv UGC 11067 - Spiral Galaxy with Type II Supernova 2024grw     Variable Stars (photometric monitoring) - None      Nearby Stars (astrometric monitoring) - Barnards Star, DX Cnc (Gliese 1111)

- All-Night Session (3.6 hrs)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 8°C (min) - CCD Temperature:   -10°/-15° C - Notes from 2024-05-16 >>     -

Observing Result

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29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2024-05-16 (passing through Cancer) Sun Distance 6.20 AU (turning ?) Earth Distance 6.55 AU (979.9 million km)		29P/Schwassmann-Wachmann - 2024-05-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 18.02 arcsec/hr, Dec -5.48 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 8 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 22:44 UT (#1218008-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (125% size, square root scale, cropped) Image details as left
Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >>
Images of 29P/Schwassmann-Wachmann on Comets 2024 Page >>

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AT 2024qe - CV Type Transient

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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 - 2024-05-16 (T+194.87d) Image below (2024-05-16.963) was taken 194.7 days after discovery of 2023wrk Position of SN (very faint) is shown by white cross-hairs Measured Magnitude +17.72 (C Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 23:15 UT (#1218035-39) 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+34.6d) Image below (2024-05-16.963) was taken 34.6 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 23:15 UT (#1218035-39) 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 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 with SN 2024igg - 2024-05-17 (T+9.7d) Image below (2024-05-17.041) was taken 9.7 days after discovery of 2024igg Position of SN (faint) is shown by white cross-hairs Poor quality image (poor guiding, single frame)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-05-17 00:59 UT (#1218072) 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 - 2024-05-17 (T+93.8d) Image below (2024-05-17.006) was taken 93.8 days after discovery of 2024cld Position of reported SN (distinct, fading) is indicated by white cross-hairs. Measured Magnitude +16.26 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-17 00:17 UT (#1218056-60) 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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NGC 6106 - Spiral Galaxy with Type Ib Supernova 2024ahv

NGC 6106 with SN 2024ahv (Hercules) SN 2024ahv (Type: Ib) discovered 2024-01-16.852 UT by Hidehiko Okoshi Alias: PS24vc, ATLAS24baw Discovery magnitude 16.2 (Clear Filter)  ( TNS 2024ahv)

NGC 6106 with SN 2024ahv - 2024-05-16 (T+121.1d) Image below (2024-05-16.992) was taken 121.1 days after discovery of 2024ahv Position of reported transient (faint) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-16 23:58 UT (#1218049-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024ahv (in NGC 6106) on Supernova 2024 Page >>

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NGC 6433 - Spiral Galaxy with Type Ia Supernova 2024efn

NGC 6433 with SN 2024efn (Hercules) SN 2024efn (Type: Ia) discovered 2024-03-12.496 UT by CRTS Alias: SNhunt463 Discovery Magnitude 19.0 (V-crts-CRTS Filter) vs Prior Non-Detection Limiting Magnitude 21.0  ( TNS 2024efn )

NGC 6433 with SN 2024efn - 2024-05-17 (T+65.6d) Image below (2024-05-17.053) was taken 65.6 days after discovery of 2024efn Position of reported supernova (faint, fading) is shown by white cross-hairs Measured Magnitude +17.6 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-17 01:26 UT (#1218078-82) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024efn (in NGC 6433) on Supernova 2024 Page >>

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UGC 8630 - Spiral Galaxy with Type II Supernova 2024drv

UGC 8630 with SN 2024drv (Canes Venatici) SN 2024drv (Type: II) discovered 2024-03-02.513 UT by ATLAS Alias: ATLAS24dct Discovery Magnitude 16.56 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Mag 18.86  ( TNS 2024drv )

UGC 8630 with SN 2024drv - 2024-05-16 (T+75.5d) Image below (2024-05-16.978) was taken 75.5 days after discovery of 2024drv Position of reported SN (distinct, fading) is indicated by white cross-hairs. Measured Magnitude +15.74 (Clear Filter) Poor quality image (poor guiding, single frame)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-05-16 23:29 UT (#1218043) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024drv (in UGC 8630) on Supernova 2024 Page >>

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UGC 11067 - Spiral Galaxy with Type II Supernova 2024grw

UGC 11067 with SN 2024grw (Ophiuchus) SN 2024grw (Type: II) discovered 2024-04-16.821 UT by ATLAS Alias: ATLAS24fvu, Gaia24bit Discovery Magnitude 18.36 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 20.09 (ATLAS) vs Historic Magnitude 20.45 +/- 0.05 (Gaia) Gaia comment : Confirmed SN II Gaia, 2024-02-01 06:55, mag 20.44 Gaia, 2024-04-16 19:43, mag 18.60 Gaia, 2024-05-03 06:03, mag 17.49 It is likely that the SN's progenitor is not the same as Gaia's  historical object recorded at mag 20.45 +/- 0.05, which is likely a foreground star since  the brightening in magnitude (only 3 mag or so ) is not consistent with the 10 mag brightening that would be expected for a SN.  The real progenitor would be expected to lay at mag 27 or so.  ( TNS 2024grw | Gaia24bit )

UGC 11067 with SN 2024grw - 2024-05-17 (T+30.2d) Image below (2024-05-17.022) was taken 30.2 days after discovery of 2024grw Position of reported supernova (faint, fading) is shown by white cross-hairs Measured Magnitude +17.42 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-05-17 00:41 UT (#1218063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11067 with SN 2024grw - Reference Image Position of reported supernova progenitor (not visible) is shown by mauve cross-hairs

Reference Image, DSS2 Colour image captured via Aladin

UGC 11067 with SN 2024grw - Reference Image, Detail Position of reported supernova is shown by mauve cross-hairs The faint object near to the position of the later supernova is likely to be a mag 20.4 foreground star, as the actual progenitor star (~ mag 27) wouldn't be expected to be visible in this image

Reference Image, PanSTARRS image captured via Aladin

Images of SN 2024grw (in UGC 11067) on Supernova 2024 Page >>

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