David's Astronomy Pages Images - Session 1115 (2023-04-19)

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AT 2021agdc - CV Type Transient AT 2022fnb - CV Type Transient AT 2023ctx - CV Type Transient AT 2023cuo - Type ulens? Transient AT 2023cvz - CV Type Transient     IC 4305 - Elliptical Galaxy with Type Ia Supernova 2023edc NGC 4611 - Spiral Galaxy with Type Ia Supernova 2023dtz NGC 5566 - Galaxy Group (ARP 286, NGC 5566 Galaxy Group) NGC 5574 - Elliptical Galaxy (NGC 5576 Group) NGC 5576 - Elliptical Galaxy (NGC 5576 Group) NGC 5577 - Spiral Galaxy (NGC 5576 Group) NGC 5915 - Spiral Galaxy with Type Ia Supernova 2023cpt     UGC 4269 - Spiral Galaxy with Type Ia-91T Supernova 2023dxb UGC 5276 - Spiral Galaxy with Type Ia Supernova 2023cxk UGC 6674 - Spiral Galaxy with Type Ib Supernova 2023bvi UGC 10678 - Spiral Galaxy with Type Ia Supernova 2023foa     Variable Stars (photometric monitoring) - SS Cyg, BL Lac      Nearby Stars (astrometric monitoring) -  HH And, Barnards Star, Groombridge 34,

- All night session (6.0 hours)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 2°C (min) - CCD Temperature:    -15°/-20°C - Notes from 2023-04-19 >>     -

AT 2021agdc - CV Type Transient

AT 2021agdc (Vulpecula) AT 2021agdc (Type: CV) discovered 2021-12-05.154 UT by Gaia Alias: Gaia21fld Alerting Magnitude 10.14 (g-GAIA Filter) vs Historic Magnitude 10.45 +/- 0.06) Bright blue gal.plane source candidate microlensing event or Be-type outburst rises by 0.3 mag  ( TNS 2021agdc | Gaia21fld)

AT 2021agdc - 2023-04-20 (T+501.0d) Image below (2023-04-20.123) was taken 501.0 days after discovery of 2021agdc Position of earlier CV Transient (not visible / likely faded) is shown by white cross-hairs

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 03:00 UT (#1115157-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2021agdc on Transients 2021 Page >>

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AT 2022fnb - CV Type Transient

AT 2022fnb (Cepheus) AT 2022fnb (Type: CV) discovered 2022-03-30.875 UT by MASTER Alias: MASTER OT J222553.47+602042.5 Discovery magnitude 13.2 (Clear filter) vs Last Non-Detection at limiting mag 18.9  ( TNS 2022fnb)

AT 2022fnb - 2023-04-20 (T+385.2d) Image below (2023-04-20.056) was taken 385.2 days after discovery of 2022fnb Position of earlier reported transient (still bright) is shown by white cross-hairs Measured magntitude + 12.33

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 01:24 UT (#1115082-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2022fnb - Reference Image (DSS2 Color)

Images of AT 2022fnb on Transients 2022 Page >>

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AT 2023ctx - CV Type Transient

AT 2023ctx (Aquila) AT 2023ctx (Type: CV) discovered 2023-03-05.538 UT by Gaia Alias: Gaia23azk Discovery Mag 13.85 (g-GAIA Filter)  ( TNS 2023ctx | Gaia23azk)

AT 2023ctx - 2023-04-20 (T+45.5d) Image below (2023-04-20.039) was taken 45.5 days after discovery of 2023ctx Position of reported CV Transient (very faint) is shown by white cross-hairs Measured magnitude +18.09

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 01:04 UT (#1115075-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT2023ctx on Transients 2023 Page >>

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AT 2023cuo - Type ulens? Transient

AT 2023cuo (Scutum) AT 2023cuo (Type: ulens?) discovered 2023-03-07.226 UT by Gaia Alias: Gaia23baf Alerting Magnitude 10.14 (g-GAIA Filter) vs Historic Magnitude 10.45 +/- 0.06) Bright blue gal.plane source candidate microlensing event or Be-type outburst rises by 0.3 mag  ( TNS 2023cuo | Gaia23baf)

AT 2023cuo - 2023-04-20 (T+43.9d) Image below (2023-04-20.108) was taken 43.9 days after discovery of 2023cuo Position of reported CV Transient (distinct) is shown by white cross-hairs Measured magnitude +11.19

Annotated CCD Image (100% size, linear scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 02:44 UT (#1115151-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023cuo on Transients 2023 Page >>

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AT 2023cvz - CV Type Transient

AT 2023cvz (Aquila) AT 2023cvz (Type: CV) discovered 2023-03-07.959 UT by Gaia Alias: Gaia23bay Alerting Magnitude 12.85 (g-GAIA Filter) vs Historic Magnitude 13.79) ~0.9 mag rise in Gaia source  ( TNS 2023cvz | Gaia23bay)

AT 2023cvz - 2023-04-20 (T+43.1d) Image below (2023-04-20.094) was taken 43.1 days after discovery of 2023cvz Position of reported CV Transient (fading) is shown by white cross-hairs Measured magnitude +12.93

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 02:18 UT (#1115127-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023cvz on Transients 2023 Page >>

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IC 4305 - Elliptical Galaxy with Type Ia Supernova 2023edc

IC 4305 with SN 2023edc (Canes Venatici) SN 2023edc (Type: Ia) discovered 2023-03-28.518 UT by PS1 Alias: PS23bcb Discovery Mag 18.12 (w-PI Filter)  ( Rochester Supernova site | TNS 2023edc )

IC 4305 with SN 2023edc - 2023-04-20 (T+22.5d) Image below (2023-04-20.006) was taken 22.5 days after discovery of 2023edc Position of reported SN (distinct) 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 2023-04-20 00:18 UT (#1115061-65) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023edc (IC 4305) on Supernova 2023 Page >>

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NGC 4611 - Spiral Galaxy with Type Ia Supernova 2023dtz

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NGC 5566 - Interacting Galaxy (ARP 286)

NGC 5566 (Virgo) Interacting Galaxy Trio (ARP 286) :  NGC 5566 with NGC 5560 & NGC 5569 Part of NGC 5566 Galaxy Group (along with NGC 5574, 5576, 5577) Ast. Now Deep Sky Challenge Object May 2018 & May 2023 NGC 5566 (catalog Mag +11.4), NGC 5560 (catalog mag +12.4),  NGC 5569 (catalog mag +13.7)   [ ARP Galaxies ]  [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image (70% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-19 22:53 UT (#1115033-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (70% size, square root scale) Image details as above

NGC 5566 - Earlier Image (2005)

Annotated CCD Image (negative) 3 x 2 min (average combine), clear filter 2005-05-18  00:26 h UT (#87103-05) 8" LX200 Classic + ST-7E

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NGC 5574 - Elliptical Galaxy (NGC 5576 Group)

NGC 5574 (Virgo) Galaxy Trio: NGC 5574 with NGC 5576 & NGC 5577 Members of NGC 5576 Group, NGC 5566 Galaxy Group Ast. Now Deep Sky Challenge Object, May 2023 [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image Mosaic (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-19 23:44 UT (#1115047-50 & 1115054-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5574 - Detail

Annotated CCD Image (125% size, log scale, cropped) Image details as above

Negative CCD Image (125% size, log scale, cropped) Image details as above

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 NGC 5576 - Elliptical Galaxy (NGC 5576 Group)

NGC 5574, NGC 5576, NGC 5577  (Virgo) Galaxy Trio Members of NGC 5576 Group,  NGC 5566 Galaxy Group Ast. Now Deep Sky Challenge Object, May 2023 [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image Mosaic (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-19 23:44 UT (#1115047-50 & 1115054-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5574 & NGC 5576 (Virgo) Members of NGC 5576 Galaxy Group Ast. Now Deep Sky Challenge Object, May 2023 [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image (70% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-19 23:34 UT (#1115047-50) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (70% size, log scale, cropped) Image details as above

NGC 5576 - Detail

Annotated CCD Image (125% size, log scale, cropped) Image details as above

Negative CCD Image (125% size, log scale, cropped) Image details as above

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 NGC 5577 - Spiral Galaxy (NGC 5576 Group)

NGC 5577 (Virgo) Galaxy Trio:  NGC 5577 with NGC 5574 & NGC 5576 Members of NGC 5576 Group, NGC 5566 Galaxy Group Ast. Now Deep Sky Challenge Object, May 2023 [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image Mosaic (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-19 23:44 UT (#1115047-50 & 1115054-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5577 - Detail

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

Negative CCD Image (125% size, square root scale, cropped) Image details as above

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NGC 5915 - Spiral Galaxy with Type Ia Supernova 2023cpt

NGC 5915 with SN 2023cpt (Libra) SN 2023cpt (Type: Ia, z=0.00758) discovered 2023-02-27.356 UT by ATLAS Alias: ATLAS23cxk Discovery Mag 17.10 (cyan-ATLAS filter)  ( Rochester Supernova site | TNS 2023cpt )

NGC 5915 with SN 2023cpt - 2023-04-19 (T+51.6d) Image below (2023-04-19.966) was taken 51.6 days after discovery of 2023cpt Position of reported SN (faint) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-19 23:17 UT (#1115042-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023cpt (NGC 5915) on Supernova 2023 Page >>

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UGC 4269 - Spiral Galaxy with Type Ia-91T Supernova 2023dxb

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UGC 5276 - Spiral Galaxy with Type Ia Supernova 2023cxk

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UGC 6674 - Spiral Galaxy with Type Ib Supernova 2023bvi

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UGC 10678 - Spiral Galaxy with Type Ia Supernova 2023foa

UGC 10678 with SN 2023foa (Hercules) SN 2023foa (Type: Ia) discovered 2023-04-13.823 UT by ATLAS Alias: KATS23G001 Discovery Mag 16.26 (Clear Filter)  ( Rochester Supernova site | TNS 2023foa )

UGC 10678 - Spiral Galaxy with SN 2023foa (T+6.2d) UGC 10678 (PGC 59535, catalog mag 14.8) with SN 2023foa (shown by white cross-hairs) Other galaxies in field of view are :  PGC 1701303 (catalog mag +16.3), PGC 1703343 (catalog mag 17.0),  PGC 214571 (catalog mag +17.1), PGC 1703330 (catalog mag +17.6)

Annotated CCD Image (70% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 00:42 UT (#1115068-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 10678 with SN 2023foa - 2023-04-20 (T+6.2d) Image below (2023-04-20.023) was taken 6.2 days after discovery of 2023foa Position of reported SN (distinct) is shown by white cross-hairs Measured Magnitude +16.76 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-20 00:42 UT (#1115068-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023foa (UGC 10678) on Supernova 2023 Page >>

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