David's Astronomy Pages CCD Images - Session 922 (2021-10-09)

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Session Notes

67P/Churyumov-Gerasimenko - Comet C/2019 L3 (ATLAS) - Comet     Nova Cas 2021 - Nova (V1405 Cas)     AT 2021zkf - YSO Transient, V0645 Cyg AT 2021aagc - HPM Type Transient      NGC 9 - Spiral Galaxy with Type Ib Supernova 2021zju NGC 940 - Spiral Galaxy with Type Ia Supernova 2021vtl NGC 1166 - Spiral Galaxy with Type II Supernova 2021zby NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv     UGC 2605 - Irregular Galaxy with Type II Supernova 2021wvw     Variable Stars (photometric monitoring) - U And, BL Lac      Nearby Stars (astrometric monitoring) - HH And, Groombridge 34, Scholz's Star

- All-night Session (8.8 hours). - Clear skies all night but poor seeing and moonlit - Main aims of the session were to acquire a selection of targets including  Comet 67P/Churyumov-Gerasimenko - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 12°C (min) - CCD Temperature:  -10°C - Notes from 2021-10-09 >>    [ Local Files >> ]   -

67P/Churyumov-Gerasimenko - Comet

67P/Churyumov-Gerasimenko - 2021-10-10 (passing through Taurus) Sun Distance 1.25 AU (approaching) Earth Distance 0.46 AU (68.8 million km)		67P/Churyumov-Gerasimenko - 2021-10-10, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 172.12 arcsec/hr, Dec 30.79 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-10 03:58 UT (#922111-12) 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) 6 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-10 04:03 UT (#922111-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 67P/Churyumov-Gerasimenko on Comets 2021 Page >>

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

67P/Churyumov-Gerasimenko - 2021-10-10

False Colour CCD Image (70% size, log scale) 6 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-10 04:03 UT (#922111-17) 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) - 2021-10-10 (passing through Lynx) Sun Distance 3.65 AU (approaching) Earth Distance 3.55 AU (530.6 million km)		C/2019 L3 (ATLAS) - 2021-10-10, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 25.40 arcsec/hr, Dec -12.49 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, C Filter 2021-10-10 04:21 UT (#922120) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 45s exposure (single frame), 3x3 binning, C Filter 2021-10-10 04:21 UT (#922120) 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 2021 Page >>

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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 / AT2021hkn - 2021-10-09 (T+205.5d) Image below (2021-10-09.967) was taken 205.5 days after discovery of Nova Nova is shown by white cross hairs.  Measured magnitude +8.04 (linked with Detection Threshold = 50)

Annotated CCD Image (100% size, linear scale, cropped) 30s exposure (single frame), 3x3 binning, C Filter 2021-10-09 23:13 UT (#922004) 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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AT 2021zkf - YSO Transient, V0645 Cyg

AT 2021zkf / V0645 Cyg (Cygnus) AT2021zkf (Type: YSO) discovered 2021-09-13.232 UT by Gaia Alias: Gaia21ego, GCVS V0645 Cyg Triggering Magnitude 11.16 (G-Gaia Filter) vs Historic Magnitude 12.14 +/- 0.29 SD Slow rise of known YSO V645 Cyg, 1 mag in over 5 years ( TNS 2021zkf | Gaia21ego )

AT 2021zkf - 2021-10-10 (T+26.9d) Image below (2021-10-10.118) was taken 26.9 days after discovery of 2021zkf Position of transient (distinct) is shown by white cross-hairs Measured Magnitude +11.24 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 02:57 UT (#922083-85) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2021zkf / V0645 Cyg on Transients 2021 Page >>

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AT 2021aagc - HPM Type Transient

AT 2021aagc (Auriga) AT 2021aagc (Type: HPM) discovered 2021-09-26.036 UT by MASTER Alias: MASTER OT J071112.22+432945.9 HPM = High Proper Motion ? [ TNS 2021aagc ] Discovery Mag +13.7. Historical Mag > +20.3 (2010)

AT 2021aagc - 2021-10-10 (T+14.2d) Image below (2021-10-10.190) was taken 14.2 days after discovery of 2021aagc Position of reported transient (distinct) is shown by white cross hairs.   Measured magnitude +13.85 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 04:40 UT (#922123-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2021aagc - Reference Image (DSS2 Color) Reported transient position is shown by purple cross hairs.   The transient appears to be a stellar object that has moved position since the DSS2 image was taken

DSS2 Image, screen captured via Aladin

Images of AT 2021aagc on Transients 2021 Page

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NGC 9 - Spiral Galaxy with Type Ib Supernova 2021zju

NGC 9 with SN 2021zju (Pegasus) SN 2021zju (Type: Ib) discovered 2021-09-24.483 UT by ATLAS Alias: ATLAS21bjbm, ZTF21acdxhuv  (Rochester Supernova site | Enrico Prosperi image )

NGC 9 with SN 2021zju - 2021-10-10 (T+15.6d) Image below (2021-10-10.061) was taken 15.6 days after discovery of 2021zju Position of SN (faint) is shown by white cross-hairs Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image  (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 01:31 UT (#922043-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021zju (NGC 9) on Supernovae 2021 Page >>

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NGC 940 - Spiral Galaxy with Type Ia Supernova 2021vtl

NGC 940 with SN 2021vtl (Triangulum) SN 2021vtl (Type: Ia) discovered 2021-08-11.930 UT by XOSS Alias: PSP21D, Gaia21duk, PSN J02292803+3138385  (Rochester Supernova site )

NGC 940 with SN 2021vtl - 2021-10-10 (T+59.1d) Image below (2021-10-10.025) was taken 59.1 days after discovery of 2021vtl Position of SN (faint) is shown by white cross-hairs Estimated Magnitude +17.0 (Clear Filter)

Annotated CCD Image  (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 00:42 UT (#922027-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021vtl (NGC 940) on Supernovae 2021 Page >>

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NGC 1166 - Spiral Galaxy with Type II Supernova 2021zby

NGC 1166 with SN 2021zby (Aries) SN 2021zby (Type: II) discovered 2021-09-17.453 UT by ATLAS Alias: ATLAS21bixf  (Rochester Supernova site | Enrico Prosperi image )

NGC 1166 with SN 2021zby - 2021-10-10 (T+22.5d) Image below (2021-10-10.003) was taken 22.5 days after discovery of 2021zby Position of SN (faint) is shown by white cross-hairs Measured Magnitude +15.86 (Clear Filter)

Annotated CCD Image  (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 00:10 UT (#922013-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021zby (NGC 1166) on Supernovae 2021 Page >>

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NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv

NGC 6184 with SN 2021wkv (Hercules) SN 2021wkv (Type: Ia, zhost=0.027329) discovered 2021/08/20.277 UT by ATLAS Alias: ATLAS21bgqy.  Magnitude +18.2 at discovery  (Rochester Supernova site )

NGC 6184 with SN 2021wkv - 2021-10-10 (T+50.8d) Image below (2021-10-10.040) was taken 50.8 days after discovery of 2021wkv Position of SN (barely visible) is shown by white cross-hairs. Poor quality image (poor seeing)

Annotated CCD Image  (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 01:03 UT (#922033-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021wkv (NGC 6184) on Supernovae 2021 Page >>

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UGC 2605 - Irregular Galaxy with Type II Supernova 2021wvw

UGC 2605 with SN 2021wvw (Perseus) SN 2021wvw (Type: II, z=0.009944) discovered 2021-08-24.606 UT by PS1 Alias: PS21jnb Host Alias : PGC 12073  (Rochester Supernova site )

UGC 2605 with SN 2021wvw - 2021-10-10 (T+46.5d) Image below (2021-10-10.090) was taken 46.5 days after discovery of 2021wvw Position of SN (faint) is shown by white cross-hairs Measured magnitude +17.80 (Clear Filter)

CCD Image  (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-10 02:13 UT (#922055-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021wvw (UGC 2605) on Supernovae 2021 Page >>

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