David's Astronomy Pages Images - Session 1444 (2026-08-13)

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Images (S1444)

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Session Notes

AT 2026juw - CV Type Transient AT 2026lck - Type Nova Transient   MCG +7-28-15 - Galaxy with Type II Supernova 2025adje  (non-detection)   NGC 4205 - Spiral Galaxy with Type Ia Supernova 2026fvx NGC 5907 - Spiral Galaxy with Type II Supernova 2026kid NGC 6070 - Spiral Galaxy with Type II Supernova 2026ejy   Variable Stars (photometric monitoring) - T CrB   Nearby Stars (astrometric monitoring) - None

- Attempted All-Night Session (2.7 hr), ended early due to deteriorating sky conditions. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 14°C (min) - 19°C at start of session, falling steadily towards dawn - CCD Temperature:  -5°C - Notes from 2026-08-13 >> - - Pereids Meteor Shower - Observations & Analysis  >>

Observing Result

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AT 2026juw  - CV Type Transient

AT 2026juw (Cygnus) AT 2026juw (Type: CV) discovered 2026-04-16.318 UT by GEOTS Alias: GEOTS-Balaji-2026-005, IRAS 19523+4538 Discovery Magnitude 13.8 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 18 (Clear Filter) Discovered in Cyg using 14" f/2.0 Astrograph at Golden Ears Observatory (MPC code U55). Group reports the discovery of a variable star displaying significant variability, characterized by periods of quiescence interspersed with episodic flaring activity. The object has increased in brightness by approximately 1.8 magnitudes compared to its last recorded observation on March 30, 2025. Period analysis of ZTF light curves performed with Peranso suggests a periodicity of roughly 323 days. ( TNS 2026juw )

AT 2026juw - 2026-08-14 (T+119.7d) Image below (2026-08-14.014) was taken 119.7 days after discovery of 2026juw Position of earlier transient ( ) is shown by white cross-hairs Measured Magnitude +13.53 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-08-14 00:23 UT (#1444053-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026juw on Transients 2026 Page  >>

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AT 2026lck  - Type Nova Transient

AT 2026lck (Aquila) AT 2026lck (Type: Nova) discovered 2026-04-24.413 UT by ZTF Alias: DCAP32, ZTF26aatyimr Discovery Magnitude 15.89 (i-ZTF Filter) vs Prior Non-Detection Limiting Magnitude ( Filter) Group reports the discovery of a candidate dwarf nova.(DCAP pipeline DCAP32=ZTF26aatyimr) ASASSN-17cf associated with the target. ( TNS 2026lck )

AT 2026lck - 2026-08-13 (T+111.5d) Image below (2026-08-13.944) was taken 111.5 days after discovery of 2026lck Position of earlier transient ( ) is shown by white cross-hairs Measured Magnitude +18.04 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-08-13 22:44 UT (#1444016-18) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026lck on Transients 2026 Page  >>

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MCG +7-28-15  - Galaxy with Type II Supernova 2025adje  (non-detection)

MCG +7-28-15 with SN 2025adje (Canes Venatici) SN 2025adje (Type: II) discovered 2025-11-14.510 UT by ASAS-SN Alias: ASASSN-25et, ZTF25acegldm, ATLAS25owo, GOTO25lal Discovery Magnitude 14.7 (g-Sloan Filter) vs Prior Non-Detection Limiting Magnitude 17.2 (g-Sloan Filter) Present in two epochs, unknown redshift host galaxy, discovered after seasonal break ( TNS 2025adje )

MCG +7-28-15 with SN 2025adje - 2026-08-13 (T+272.5d) Image below (2026-08-13.992) was taken 272.5 days after discovery of 2025adje Position of earlier supernova (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +19.3 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-08-13 23:57 UT (#1444036-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG +7-28-15 with SN 2025adje - Earlier Image, 2025-12-03 (T+18.5d) Image below (2025-12-03.019) was taken 18.5 days after discovery of 2025adje Position of earlier supernova (distinct) is shown by white cross-hairs Measured Magnitude +14.70 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-12-03 00:36 UT (#1382203-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025adje (in MCG +7-28-15) on Supernovae 2025 Page  >>

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NGC 4205  - Spiral Galaxy with Type Ia Supernova 2026fvx

NGC 4205 with SN 2026fvx (Draco) SN 2026fvx (Type: Ia) discovered 2026-03-17.986 UT by LAST Alias: ZTF26aamqluf, ATLAS26dgt Discovery Magnitude 19.46 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 19.97 (Clear Filter) ( TNS 2026fvx )

NGC 4205 with SN 2026fvx - 2026-08-13 (T+149.0d) Image below (2026-08-13.978) was taken 149.0 days after discovery of 2026fvx Position of earlier supernova (faint) is shown by white cross-hairs Estimated Magnitude +16.4 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-08-13 23:37 UT (#1444029-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026fvx (in NGC 4205) on Supernovae 2026 Page  >>

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NGC 5907  - Spiral Galaxy with Type II Supernova 2026kid

NGC 5907 with SN 2026kid (Draco) SN 2026kid (Type: II) discovered 2026-04-22.600 UT by Yasuo Sano Alias: ATLAS26equ, ZTF26aatswhm Discovery Magnitude 16.62 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 19 (Clear Filter) SCT 0.36-m F/11 reflector + FLI ML1001E CCD, Nayoro Hokkaido Japan ( TNS 2026kid )

NGC 5907 with SN 2026kid - 2026-08-13 (T+113.4d) Image below (2026-08-13.959) was taken 113.4 days after discovery of 2026kid Position of earlier supernova (very faint) is shown by white cross-hairs Estimated Magnitude +17.4 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-08-13 23:10 UT (#1444022-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5907 with SN 2026kid - Earlier Image, 2026-04-29 (T+7.4d) Image below (2026-04-29.989) was taken 7.4 days after discovery of 2026kid Position of earlier supernova (distinct) is shown by white cross-hairs Measured Magnitude +14.10 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-04-29 23:49 UT (#1427072-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026kid (in NGC 5907) on Supernovae 2026 Page  >>

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NGC 6070  - Spiral Galaxy with Type II Supernova 2026ejy

NGC 6070 with SN 2026ejy (Serpens) SN 2026ejy (Type: II) discovered 2026-02-25.180 UT by ATLAS Alias: GOTO26bnq, ZTF26aaiedvz, ATLAS26coa, BGEM J161000.25+004220.7 Discovery Magnitude 18.55 (L-GOTO Filter) vs Prior Non-Detection Limiting Magnitude 20.4 (L-GOTO Filter) ( TNS 2026ejy )

NGC 6070 with SN 2026ejy - 2026-08-13 (T+169.8d) Image below (2026-08-13.933) was taken 169.8 days after discovery of 2026ejy Position of earlier supernova (faint) is shown by white cross-hairs Measured Magnitude +15.50 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-08-13 22:30 UT (#1444010-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026ejy (in NGC 6070) on Supernovae 2026 Page  >>

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