David's Astronomy Pages Images - Session 1405 (2026-03-12)

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Session Notes

240P/NEAT - Comet   C/2022 N2 (PANSTARRS) - Comet   Nova Per 2020 - Nova (N Per 2020, PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232)   AT 2026cpv - Type HPM Transient AT 2026evo - CV Type Transient   Berkeley 1 - Open Cluster Berkeley 6 - Open Cluster Berkeley 17 - Spiral Galaxy Berkeley 49 - Open Cluster Berkeley 71 - Open Cluster M37 - Open Cluster M44 - Open Cluster   PCG 1013+2831 - Compact Galaxy Group   SHK 54 - Faint Galaxy Group (AGC 1067)   UGC 622 - Spiral Galaxy with Transient AT 2026epv   - NGC 3660 attempt failed (due to cloud/poor guiding)   Variable Stars (photometric monitoring) - CI Cyg, GK Per   Nearby Stars (astrometric monitoring) - Barnard's Star

- Attempted All-Night Session (7.6 hr) which ended early due to high winds. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 2°C (min) - CCD Temperature:  -20°/-25°C - Notes from 2026-03-12 >> - -

Observing Result

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240P/NEAT  - Comet

240P/NEAT - 2026-03-12 (passing through Taurus) Sun Distance 2.22 AU Earth Distance 2.20 AU (329.4 million km)		240P/NEAT - 2026-03-12 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 57.0 arcsec/hr, Dec 22.2 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 22:52 UT (#1405046-47) 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) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 22:56 UT (#1405046-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of Comet_240P_NEAT on Comets 2026 Page  >>

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C/2022 N2 (PANSTARRS)  - Comet

C/2022 N2 (PANSTARRS) - 2026-03-12 (passing through Taurus) Sun Distance 4.30 AU Earth Distance 4.54 AU (679.8 million km)		C/2022 N2 (PANSTARRS) - 2026-03-12 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 33.0 arcsec/hr, Dec 4.1 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 23:10 UT (#1405057-60) 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) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 23:12 UT (#1405057-63) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C2022_N2_PANSTARRS on Comets 2026 Page  >>

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Nova Per 2020  - Nova (N Per 2020, PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232)

Nova Per 2020 (Perseus) Alias: N Per 2020, PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232 AT 2020abap (Type: CV) discovered 2020/11/27.230 UT by PGIR Alias: V1112 Per, AT2020abap [ Novae ]

Nova Per 2020 (Perseus) Nova Per 2020 - 2026-03-13 (T+1933.3d) Image below (2026-03-13.077) was taken 1933.3 days after discovery of Nova Per 2020 Position of earlier transient (not visible) is shown by white cross-hairs Estimated Magnitude +19.8 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-13 01:59 UT (#1405114-18) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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AT 2026cpv  - Type HPM Transient

AT 2026cpv (Cygnus) AT 2026cpv (Type: HPM) discovered 2026-02-09.508 UT by MASTER Alias: MASTER OT J192256.61+460501.0 Discovery Magnitude 15.8 (Other- Filter) vs Prior Non-Detection Limiting Magnitude 19.7 (Other- Filter) star with proper motion and with 0.3mag variability per 1 hour ( TNS 2026cpv )

AT 2026cpv - 2026-03-13 (T+31.5d) Image below (2026-03-13.035) was taken 31.5 days after discovery of 2026cpv Position of earlier transient (faint) is shown by white cross-hairs Measured Magnitude +15.63 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 19 x 90s exposure (average combine), 3x3 binning, Clear Filter 2026-03-13 01:07 UT (#1405090-108) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026cpv on Transients 2026 Page  >>

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AT 2026evo  - CV Type Transient

AT 2026evo (Triangulum) AT 2026evo (Type: CV) discovered 2026-03-04.223 UT by ATLAS Alias: ATLAS26con Discovery Magnitude 16.528 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 18.62 (orange-ATLAS Filter) ( TNS 2026evo )

AT 2026evo - 2026-03-12 (T+8.7d) Image below (2026-03-12.912) was taken 8.7 days after discovery of 2026evo Position of earlier transient (faint) is shown by white cross-hairs Measured Magnitude +17.42 (Clear Filter) Poor quality image (poor transparency / poor seeing)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 22:00 UT (#1405035-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026evo on Transients 2026 Page  >>

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Berkeley 1  - Open Cluster

Berkeley 1 (Cassiopeia) [ Open Star Clusters ]

Berkeley 1 (Cassiopeia)

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 20s exposure (average combine), 1x1 binning, gain 150, OSC 2026-03-12 22:26 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

Berkeley 1 (Cassiopeia)

CMOS Image (50% size, linear scale (auto-stretched), cropped) 30 x 20s exposure (average combine), 1x1 binning, gain 150, OSC 2026-03-12 22:26 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

Berkeley 1 - Earlier image (Aug 2020) 3.5 mins total exposure (12" LX200)

CCD Image (70% size, linear scale) 7 x 30s exposure (average combine), 3x3 binning, C Filter 2020-08-09 02:09 UT (#797142-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Berkeley 6  - Open Cluster

Berkeley 6 (Cassiopeia) Dec +61d 05m [ Open Star Clusters ]

Berkeley 6 (Cassiopeia)

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 15s exposure (average combine), 1x1 binning, gain 150, OSC 2026-03-12 22:40 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

Berkeley 6 - Detail 7.5 mins total exposure

Annotated CMOS Image (40% size, linear scale (auto-stretched), cropped) Image details as above

Berkeley 6 - Earlier Image 3.5 min total exposure (12" LX200)

CCD Image (70% size, square root scale) 9 x 30s exposure (average combine), 3x3 binning, C Filter 2020-09-01 01:27 UT (#802112-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Berkeley 17  - Spiral Galaxy

Berkeley 17 (Auriga) [ Messier Objects ]

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 15s exposure (average combine), 1x1 binning, gain 100, OSC 2026-03-13 00:02 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

Berkeley 17 - Detail 7.5 mins total exposure (80mm TS80 APO)

CMOS Image (50% size, linear scale (auto-stretched), cropped) Image details as above

Berkeley 17 - Earlier Image (Sep 2020) 4.5 mins total exposure (12" LX200)

CCD Image (70% size, square root scale) 9 x 30s exposure (average combine), 3x3 binning, C Filter 2020-09-04 02:13 UT (#804284-92) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Berkeley 49  - Open Cluster

Berkeley 49 (Cygnus) [ Open Star Clusters ]

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 15s exposure (average combine), 1x1 binning, gain 150, OSC 2026-03-13 00:37 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

Berkeley 49 (Cygnus) 7.5 mins total exposure (80mm TS80 APO)

Annotated CMOS Image (50% size, linear scale (auto-stretched), cropped) 30 x 15s exposure (average combine), 1x1 binning, gain 150, OSC 2026-03-13 00:37 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

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Berkeley 71  - Open Cluster

Berkeley 71 (Auriga) [ Open Star Clusters ]

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 10s exposure (average combine), 1x1 binning, gain 75, OSC 1990-01-01 00:00 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

Berkeley 71 - Detail

Annotated CMOS Image (50% size, linear scale (auto-stretched), cropped) Image details as above

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M37  - Open Cluster

M37 (Auriga) [ Open Star Clusters ]  [ Messier Objects ]

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 30s exposure (average combine), 1x1 binning, gain 275, OSC 2026-03-13 02:22 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

M37 (Auriga) 15 mins total exposure (80mm TS80)

Annotated CMOS Image (30% size, linear scale (auto-stretched), cropped) 30 x 30s exposure (average combine), 1x1 binning, gain 275, OSC 2026-03-13 02:22 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

M37 - Earlier Image (Jan 2023) 10 mins total exposure (80mm TS80)

Colour CMOS Image (30% size, asinh stretched, cropped) 20 x 30s exposure (stacked), 1x1 binning, gain 375 2023-01-18 23:35 UT TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME

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M44  - Open Cluster

M44 (Cancer) [ Open Star Clusters ]  [ Messier Objects ]

Part of M44 15 mins total exposure (80mm TS80)

Annotated CMOS Image (16% size, linear scale (auto-stretched)) 30 x 30s exposure (average combine), 1x1 binning, gain 275, OSC 2026-03-13 02:55 UT (#) TS 80mm APO + ZWO ASI178MC Auto-guided using 12" LX200R + ST-10XME & PHD2

M44 - Earlier Image (Apr 2002) 2.5 mins total exposure (8" LX200)

CCD Image 5x30 sec exposure 2002-04-08 21:23hUT 200mm focal length lens + ST-7e

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PCG 1013+2831  - Compact Galaxy Group

PCG 1013+2831 (Leo Minor) Palomar Compact Galaxy Catalogue, radius 30 arcsec, mag 15.5 [ PCG Groups ]

PCG 1013+2831 (Leo Minor)

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 20:10 UT (#1405006-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PCG 1013+2831 (Leo Minor)

Annotated CCD Image (175% size, square root scale, cropped) Image details as above

PCG 1013+2831 (Leo Minor)

Annotated CCD Image (175% size, square root scale, cropped) Image details as above

Annotated negative CCD Image (175% size, square root scale, cropped) Image details as above

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SHK 54  - Faint Galaxy Group (AGC 1067)

SHK 54 (Ursa Major) Alias: AGC 1067 Shakhbazian Group. Mag 16.5, Size 5.5' [ Shakhbazian Groups ]

Annotated CCD Image (70% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 20:32 UT (#1405013-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SHK 54 - Detail

Annotated CCD Image (100% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 20:32 UT (#1405013-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Annotated negative CCD Image (100% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 20:32 UT (#1405013-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGC 622  - Spiral Galaxy with Transient AT 2026epv

UGC 622 with AT 2026epv (Andromeda) AT 2026epv (Type: unk) discovered 2026-02-27.000 UT by Giancarlo Cortini Discovery Magnitude 17.5 (Clear- Filter) vs Prior Non-Detection Limiting Magnitude ( Filter) Possible discovery by Giancarlo Cortini at Monte Maggiore Observatory Predappio Italy Discovery date Feb 27 18:30 UT ( TNS 2026epv )

UGC 622 with AT 2026epv - 2026-03-12 (T+14.0d) Image below (2026-03-12.980) was taken 14.0 days after discovery of 2026epv Position of earlier transient (faint) is shown by white cross-hairs Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-03-12 23:40 UT (#1405075-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026epv on Transients 2026 Page  >>

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