David's Astronomy Pages Images - Session 1009 (2022-05-11)

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KIC 8462852 - Variable Star (Tabby's Star)     AT 2021agpw - CV Type Transient AT 2022evu - CV Type Transient AT 2022jrp - CV Type Transient (UG Candidate)     Mrk 506 - Galaxy with Type AGN Transient AT 2021agiv     NGC 4545 - Spiral Galaxy with Type II Supernova 2022fuc NGC 6061 - Elliptical Galaxy with Transient AT 2022fqs  (Attempt)     UGC 3944 - Spiral Galaxy with Type Ia Supernova 2022hkc     Variable Stars (photometric monitoring) - R CrB, SS Her, KIC 8462852, BL Lac      Nearby Stars (astrometric monitoring) - None

- All night session (3.3 hours) - Session ended early due to developing cloud     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 4°C (min) - CCD Temperature:  -15°/-20°C - Notes from 2022-05-11 >>

KIC 8462852 - Variable Star (Tabby's Star)

KIC 8462852 / Tabby's Star (Cygnus) Alias: Boyajian's Star, WTF Star ("Where’s the Flux?") Distance 1470 ly. Magnitude +11.7 Star shows large irregular dimmings. KIC 8462852 shown by white cross-hairs

KIC 8462852  - Image (2022-05-12) Measured Mag +11.89 (V)

Annotated CCD Image  (50% size, linear scale) 3 x 60s exposure (average combine), 3x3 binning, V Filter 2022-05-12 01:25 UT (#1009094-96) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

KIC 8462852  - Previous Image (2022-03-20) Measured Mag +12.01 (V)

Annotated CCD Image  (50% size, linear scale) 3 x 60s exposure (average combine), 3x3 binning, V Filter 2022-03-20 04:18 UT (#989258-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

KIC 8462852 Links: AAVSO Info : https://www.aavso.org/category/tags/kic-8462852 Unofficial Page for Where's the Flux? Discovery Paper:  1509.03622.pdf (arxiv.org)

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AT 2021agpw - CV Type Transient

AT 2021agpw (Serpens) AT 2021agpw (Type: CV) discovered 2021-12-27.275 UT by MASTER Alias: MASTER OT J155629.78+090149.3 Discovery Mag 10.1 (red long variability ?) [ TNS 2021agpw ]

AT 2021agpw - 2022-05-11 (T+135.7d) Image below (2022-05-11.990) was taken 135.7 days after discovery of 2021agpw Reported transient is shown by white cross hairs.   Measured magnitude +13.15

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2022-05-11 23:50 UT (#1009048-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2021agpw on Transients 2021 Page

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AT 2022evu - CV Type Transient

AT 2022evu (Bootes) AT 2022evu (Type: CV) discovered 2022-03-17.345 UT by MASTER Alias: MASTER OT J144954.78+401346.5 Discovery Mag +13.1  (vs non-detection / mag limit +18.2) Identified in Aladin/Simbad as CSS J144954.6+401349 (a RR Lyr type variable)  ( TNS 2022evu )

AT 2022evu - 2022-04-28 (T+41.7d) Image below (2022-04-28.082) was taken 41.7 days after discovery of 2022evu Position of reported transient (fading) is shown by white cross-hairs Measured magnitude +13.73

Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2022-04-28 02:02 UT (#1004111-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022evu on Transients 2022 Page

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AT 2022jrp - CV Type Transient (UG Candidate)

AT 2022jrp (Bootes) AT 2022jrp (Type: CV) discovered 2022-05-09.812 UT by XOSS Alias: XM116HT Discovery Magnitude +12.8 Classification : CV Type (Spectrum shows a blue continuum with H alpha in emission at zero redshift) Rochester Supernova site | TNS 2022jrp | XM116HT Discovery)

AT 2022jrp - Transient (T+2.2d)

Annotated CCD Image (50% size, linear scale) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2022-05-11 23:26 UT (#1009034-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2022jrp - 2022-05-11 (T+2.2d) Image below (2022-05-11.974) was taken 2.2 days after discovery of 2022jrp Position of reported transient is shown by white cross-hairs Measured magnitude +13.85

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2022-05-11 23:26 UT (#1009034-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2022jrp - Reference Image No obvious indication of an object at position of reported transient shown by mauve cross-hairs

DSS2 Image captured via in Aladin

Images of AT 2022jrp on Transients 2022 Page >>

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Mrk 506 - Galaxy with Type AGN Transient AT 2021agiv

Mrk 506 with AT 2021agiv (Hercules) AT 2021agiv (Type: AGN) discovered 2021-12-14.928 UT by Gaia Alias: Gaia21fot Alerting Magnitude 15.65 (vs Historic magnitude 16.93) Brightening in Gaia source coincident with Seyfert I Galaxy  ( Rochester Supernova site | Gaia21fot )

Mrk 506 with AT 2021agiv - 2022-05-12 (T+148.1d) Image below (2022-05-12.042) was taken 148.1 days after discovery of 2021agiv Position of reported AGN transient is shown by white cross-hairs Measured magnitude +14.98

Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-12 01:05 UT (#1009086-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2021agiv (Mrk 506) on Transients 2021 Page

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NGC 4545 - Spiral Galaxy with Type II Supernova 2022fuc

NGC 4545 with SN2022fuc (Draco) SN 2022fuc (Type: II) discovered 2022-04-02.878 UT by Giancarlo Cortini Alias: ATLAS22lhg, ZTF22aadpuwe  ( Rochester Supernova site )

NGC 4545 with SN 2022fuc - 2022-05-11 (T+39.1d) Image below (2022-05-11.959) was taken 39.1 days after discovery of 2022fuc Position of SN (bright) is shown by white cross-hairs Measured magnitude +15.73

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-11 23:11 UT (#1009027-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022fuc (NGC 4545) on Supernovae 2022 Page >>

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NGC 6061 - Elliptical Galaxy with Transient AT 2022fqs (Attempt)

NGC 6061 with AT 2022fqs (Hercules) AT 2022fqs (Type: unk) discovered 2022-03-22.903 UT by Gaia Alias: Gaia22bfr Candidate SN near galaxy NGC 6061 Discovery Magnitude +18.05 Faded to 19.80 /19.94 by 2022-04-05 Rochester Supernova site | TNS 2022fqs | Gaia22bfr )

NGC 6061 - Elliptical Galaxy NGC 6061 (catalog mag) with adjacent galaxies :  IC 1189 (catalog mag +14.6), IC 1190 (catalog mag +14.8), IC 1191 (catalog mag +15.5),   PGC 57118 (catalog mag +15.5), PGC 84731 (catalog +16.6)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-12 00:07 UT (#1009056-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6061 - Detail

Annotated CCD Image (150% size, square root scale, cropped) Image details as above

NGC 6061 with AT 2022fqs - 2022-05-11 (T+50.1d) Image below (2022-05-11.999) was taken 50.1 days after discovery of 2022fqs Position of earlier transient (faded/not visible) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-12 00:07 UT (#1009056-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022fqs (NGC 6061) on Transients 2022 Page >>

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UGC 3944 - Spiral Galaxy with Type Ia Supernova 2022hkc

UGC 3944 with SN2022hkc (Lynx) SN 2022hkc (Type: Ia) discovered 2022-04-12.279 UT by ATLAS Alias: ATLAS22lrz Discovery magnitude 17.25  ( Rochester Supernova site | TNS 2022hkc )

UGC 3944 with SN 2022hkc - 2022-05-12 (T+29.7d) Image below (2022-05-12.015) was taken 29.7 days after discovery of 2022hkc Position of SN (bright) is shown by white cross-hairs Measured magnitude +15.47

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-12 00:30 UT (#1009063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022hkc (UGC 3944) on Supernovae 2022 Page >>

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