David's Astronomy Pages
Images - Session 1458 (2026-10-02)

Objects Session Notes
Bullet 88P/Howell - Comet
 
Bullet Nova Aql 2026 - Nova with Type Nova Transient AT 2026rdg
 
Bullet AT 2026juw - CV Type Transient
Bullet AT2026stb - Type Nova Transient
 
Bullet IC 167 - Spiral Galaxy (ARP 31, Part of NGC 691 Group)
Bullet M31 - Spiral Galaxy with Transient AT 2026uti  (non-detection)
 
Bullet NGC 2998 - Spiral Galaxy with Type IIb Supernova 2026acpp
Bullet NGC 7292 - Irregular Galaxy with Type II Supernova 2026fov
Bullet NGC 7771 - Spiral Galaxy
 
Bullet UGC 242 - Spiral Galaxy with Type II Supernova 2026yum
Bullet UGC 279 - Spiral Galaxy with Type IIP Supernova 2026zyf  (non-detection)
Bullet UGC 1186 - Galaxy with Transient AT 2026nfo  (non-detection)
 
- NGC 3437, NGC 3689 attempt failed (due to cloud)
 
Bullet Variable Stars (photometric monitoring)
- U And, T CrB, CI Cyg, SS Cyg, AM Her, BL Lac, CY Lyr, DY Per, ER UMa
 
- RZ LMi attempt failed (due to cloud)
 
Bullet Nearby Stars (astrometric monitoring)
- Barnard's Star, Groombridge 34, EV Lac (GJ 873)
 
- Attempted All-Night Session (8.5 hr), ended earlier due to cloud
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 7.5°C (min)
- CCD Temperature:  -10°/-15°C
- Notes from 2026-10-02 >>
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Observing Result

Image

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88P/Howell  - Comet

88P/Howell - 2026-10-03
(passing through Aries)

Sun Distance 2.37 AU
Earth Distance 1.50 AU (224.9 million km)
   88P/Howell - 2026-10-03 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -28.7 arcsec/hr, Dec -5.3 arcsec/hr)
Image    Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 01:33 UT (#1458173-75)
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)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 01:33 UT (#1458173-75)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
      
Images of Comet 88P Howell on Comets 2026 Page  >>     

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Nova Aql 2026  - Nova with Type Nova Transient AT 2026rdg

Nova Aql 2026 (Aquila)
Discovery Magnitude 12.53 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude (r-ZTF Filter)
Group reports the discovery of a candidate nova.(DCAP238=ZTF26abemjfk)
https://dcap-minruining.github.io/DCAP/
Image taken with SQA130mm, Luminance 200sx3.

( TNS 2026rdg )
[ Novae ] 
 
Nova Aql 2026 (Aquila)
Alias: Nova Aql 2026, AT 2026rdg, V2104 Aql
AT 2026rdg (Type: Nova) discovered 2026-07-01.305 UT by ZTF
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +15.09 (Clear Filter)
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 21:25 UT (#1458043-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of Nova Aql 2026 on Novae 2026 Page  >>

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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 - 2026-10-02 (T+169.6d)
Image below (2026-10-02.901) was taken 169.6 days after discovery of 2026juw
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +14.33 (Clear Filter)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 21:41 UT (#1458050-54)
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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AT2026stb  - Type Nova Transient

AT2026stb (Scutum)
Alias: AT 2026stb
AT 2026stb (Type: Nova) discovered 2026-07-08.000 UT by ZTF
Discovery Magnitude 15.06 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude (r-ZTF Filter)
Group reports a CV candidate that appears red; possible nova candidate. (DCAP269=ZTF26abfokua)
https://dcap-minruining.github.io/DCAP/
zr=15.06mag, zg=17.11mag, zg-zr=2.05mag
Image taken
with Takahashi 180mm, Luminance 120s.

( TNS 2026stb )
[ Novae ] 
 
AT 2026stb - 2026-10-02 (T+86.9d)
Image below (2026-10-02.881) was taken 86.9 days after discovery of 2026stb
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +13.21 (Clear Filter)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 120s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 21:14 UT (#1458037-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT2026stb on Transients 2026 Page  >>

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IC 167  - Spiral Galaxy (ARP 31, Part of NGC 691 Group)

IC 167 (Aries)
Alias: ARP 31, Part of NGC 691 Group,
Ast.Now Deep Sky Challenge Dec 2025
[ ARP Galaxies ] 
 
IC 167 (Aries)
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 02:29 UT (#1458192-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
IC 167 - Detail
Image
Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 02:29 UT (#1458192-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
IC 167 - Earlier Image (Nov 2025)
Image
Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 2x2 binning, Clear Filter
2025-11-25 21:25 UT (#1378103-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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M31  - Spiral Galaxy with Transient AT 2026uti  (non-detection)

M31 with AT 2026uti (Andromeda)
AT 2026uti (Type: unk) discovered 2026-07-13.803 UT by XOSS
Alias: PSP26M, PNV J00445643+4157416
Discovery Magnitude 17.98 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude (Clear Filter)
Nova candidate classified by XOSS.
Details can be found at
http://xjltp.china-vo.org/psp26m.html

( TNS 2026uti )
[ Messier Objects ] 
 
M31 with AT 2026uti - 2026-10-02 (T+81.2d)
Image below (2026-10-02.985) was taken 81.2 days after discovery of 2026uti
Image
Annotated CCD Image (70% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 23:48 UT (#1458116-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
M31 with AT 2026uti - 2026-10-02 (T+81.2d)
Image below (2026-10-02.985) was taken 81.2 days after discovery of 2026uti
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.7 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 23:48 UT (#1458116-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2026uti (in M31 AT2026uti) on Transients 2026 Page  >>

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NGC 2998  - Spiral Galaxy with Type IIb Supernova 2026acpp

NGC 2998 with SN 2026acpp (Ursa Major)
SN 2026acpp (Type: IIb) discovered 2026-09-21.820 UT by Koichi Itagaki
Alias: ZTF26abyamcg
Discovery Magnitude 17.7 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude (Clear Filter)
0.35-m F/11 + CCD (KAF-1001E) unfiltered
( TNS 2026acpp )
 
NGC 2998 - Spiral Galaxy
Image
Annotated CCD Image (50% size, square root scale)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-10-03 03:55 UT (#1458199)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 2998 with SN 2026acpp - 2026-10-03 (T+11.3d)
Image below (2026-10-03.163) was taken 11.3 days after discovery of 2026acpp
Position of earlier supernova (faint) is shown by white cross-hairs
Estimated Magnitude +17.04 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-10-03 03:55 UT (#1458199)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026acpp (in NGC 2998) on Supernovae 2026 Page  >>

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NGC 7292  - Irregular Galaxy with Type II Supernova 2026fov

NGC 7292 with SN 2026fov (Pegasus)
SN 2026fov (Type: II) discovered 2026-03-14.851 UT by Koichi Itagaki
Alias: ZTF26aaltzhc
Discovery Magnitude 13.5 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude (Clear Filter)
0.35-m F/11 + CCD (KAF-1001E) unfiltered
( TNS 2026fov )
[ Irregular Galaxies ] 
 
NGC 7292 with SN 2026fov - 2026-10-02 (T+202.1d)
Image below (2026-10-02.970) was taken 202.1 days after discovery of 2026fov
Position of earlier supernova (faint) is shown by white cross-hairs
Measured Magnitude +16.38 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 23:24 UT (#1458109-12)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026fov (in NGC 7292) on Supernovae 2026 Page  >>

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NGC 7771  - Spiral Galaxy

NGC 7771 (Pegasus)
Deep Sky Challenge object, AstNow, Oct 2026
[ Deep Sky Challanges (Ast.Now) ] 
 
NGC 7771 (Pegasus)
Image
Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 00:10 UT (#1458123-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 7771 - Detail
Image
Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 00:10 UT (#1458123-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Annotated CCD Image (125% size, square root scale, cropped)
Image details as above
 
Image
Annotated negative CCD Image (125% size, square root scale, cropped)
Image details as above
 

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UGC 242  - Spiral Galaxy with Type II Supernova 2026yum

UGC 242 with SN 2026yum (Pisces)
SN 2026yum (Type: II) discovered 2026-08-13.092 UT by ATLAS
Alias: GOTO26iei, ATLAS26jxg, ZTF26abnuyoi
Discovery Magnitude 18.04 (L-GOTO Filter)
vs Prior Non-Detection Limiting Magnitude 20.2 (L-GOTO Filter)
( TNS 2026yum )
 
UGC 242 with SN 2026yum - 2026-10-03 (T+51.0d)
Image below (2026-10-03.047) was taken 51.0 days after discovery of 2026yum
Position of earlier supernova (faint) is shown by white cross-hairs
Measured Magnitude +16.45 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-03 01:17 UT (#1458166-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026yum (in UGC 242) on Supernovae 2026 Page  >>

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UGC 279  - Spiral Galaxy with Type IIP Supernova 2026zyf  (non-detection)

UGC 279 with SN 2026zyf (Andromeda)
SN 2026zyf (Type: IIP) discovered 2026-08-28.092 UT by ATLAS
Alias: ATLAS26koy
Discovery Magnitude 18.423 (wide-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 18.76 (wide-ATLAS Filter)
( TNS 2026zyf )
 
UGC 279 with SN 2026zyf - 2026-10-02 (T+35.8d)
Image below (2026-10-02.938) was taken 35.8 days after discovery of 2026zyf
Position of earlier supernova (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +20.0 (Clear Filter)
Image
Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 22:40 UT (#1458095-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026zyf (in UGC 279) on Supernovae 2026 Page  >>

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UGC 1186  - Galaxy with Transient AT 2026nfo  (non-detection)

UGC 1186 with AT 2026nfo (Andromeda)
AT 2026nfo (Type: unk) discovered 2026-05-15.493 UT by ZTF
Alias: ZTF26aawxvuw
Discovery Magnitude 16.6376 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude (r-ZTF Filter)
No non-detections prior to first detection in ZTF Public+Partnership, ZTF Public alert
streams

( TNS 2026nfo )
 
UGC 1186 with AT 2026nfo - 2026-10-02 (T+140.5d)
Image below (2026-10-02.954) was taken 140.5 days after discovery of 2026nfo
Image
Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 23:03 UT (#1458102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
UGC 1186 with AT 2026nfo - 2026-10-02 (T+140.5d)
Image below (2026-10-02.954) was taken 140.5 days after discovery of 2026nfo
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-10-02 23:03 UT (#1458102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2026nfo (in UGC 1186) on Transients 2026 Page  >>

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