David's Astronomy - Images 2024-10-12 (S1254)

David's Astronomy Pages
Images - Session 1254 (2024-10-12)

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Objects Session Notes

AT 2024uzm - Transient

AT 2024wxp - CV Type Transient

AT 2024xhn - Type Nova? Transient

NGC 1383 - Spiral Galaxy

PGC 1184747 - Galaxy

SN 2024wak - Type Ia Supernova

- PGC 143 attempt failed (due to cloud)

- Frosty Leo Nebula attempt failed (incorrect coords)

Variable Stars (photometric monitoring)

- None

Nearby Stars (astrometric monitoring)

- Teegardens Star

- Night Session (6.2 hrs),. Delayed by and interupted by cloud & rain

- 12" LX200 + ST-10XME for imaging

- TS 80mm APO + ZWO ASI178MC for guiding & imaging

- Ambient Temperature: 5°C (min)

- CCD Temperature: -20°C

- Notes from 2024-10-12 >>

-

Observing Result

AT 2024uzm - Transient

AT 2024uzm (Taurus)
AT 2024uzm (Type: unk) discovered 2024-09-07.519 UT by ATLAS
Alias: ATLAS24oag, GOTO24fxr
Discovery Magnitude 15.09 (orange-ATLAS Filter)
( TNS 2024uzm )

No star object is visble at the Transient Location on DSS2 & PanSTARRS images
Transient might be a supernova or other brightening event associated with the
very faint galaxy WISEA J041337.94+180758.3
The object type remains 'Unknown'

AT 2024uzm - 2024-10-13 (T+35.6d)
Image below (2024-10-13.087) was taken 35.6 days after discovery of 2024uzm
Position of earlier transient (faded & no longer visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.0 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-13 02:08 UT (#1254024-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024uzm - Earlier Image, 2024-09-16 (T+8.6d)
Image below (2024-09-16.101) was taken 8.6 days after discovery of 2024uzm
Position of earlier transient (faint) is shown by white cross-hairs
Measured magnitude +16.80 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-09-16 02:34 UT (#1244205-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024uzm on Transients 2024 Page >>

AT 2024wxp - CV Type Transient

AT 2024wxp (Gemini)
AT 2024wxp (Type: CV) discovered 2024-09-26.679 UT by Gaia
Alias: Gaia24cru
Discovery Magnitude 15.75 (G-Gaia Filter)
vs Historic Magnitude 16.09 +/- 0.02 SD
( TNS 2024wxp | Gaia24cru )

AT 2024wxp - 2024-10-13 (T+16.5d)
Image below (2024-10-13.193) was taken 16.5 days after discovery of 2024wxp
Position of reported transient (faint, not totally distinguishable) is shown by white cross-hairs
Measured Magnitude +15.32 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-13 04:43 UT (#1254045-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024wxp on Transients 2024 Page >>

AT 2024xhn - Type Nova? Transient

AT 2024xhn (Lynx)
AT 2024xhn (Type: Nova?) discovered 2024-10-04.678 UT by MASTER
Alias: MASTER OT J065054.42+593625.5
Discovery Magnitude 13.6 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude 20.4
( TNS 2024xhn )

Robin Leadbeater reports that a spectrum of object: AT 2024xhn (= GOTO065054.49+593624.51)
shows a blue continuum with H alpha faint or absent and other Balmer lines at
zero redshift in absorption, typical of a dwarf nova outburst (classification report)

AT 2024xhn - 2024-10-13 (T+8.5d)
Image below (2024-10-13.133) was taken 8.5 days after discovery of 2024xhn
Position of reported transient (distinct) is shown by white cross-hairs
Measured Magnitude +13.59 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-10-13 03:12 UT (#1254041)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024xhn on Transients 2024 Page >>

Frosty Leo Nebula - Protoplanetary Nebula (PPN)

Frosty Leo Nebula (Leo)
Protoplanetary Nebula
[ Planetary Nebula ]

CCD Image (50% size, log scale)
5 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-17 00:26 UT (#850195-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Frosty Leo Nebula - Detail

CCD Image (200% size, log scale, cropped)
5 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-17 00:26 UT (#850195-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Frosty Leo Nebula - Earlier Image (Jan 2021)

NGC 1383 - Spiral Galaxy

NGC 1383 (Eridanus)
Member of NGC 1407 Galaxy Group,
Ast. Now Challenge, Dec 2019
[ Deep Sky Challanges (Ast.Now) ]

Altitude 14.5°, Airmass 3.96
Poor quality image (stars trailed, single frame, poor S/N)
Target to be rescheduled for a later session

Annotated CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-10-13 02:17 UT (#1254030)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 1184747 - Galaxy

PGC 1184747 (Hydra)
PGC 1184747 (catalog mag +17.3)
with other faint galaxies
PGC 1185521 (catalog mag +17.3),
SDSS J093941.89+010811.8 (g mag +18.2)
WISEA J094001.25+010558.3
Image taken by accident as the intended target for this observation slot
was Frosty Leo Nebula (Pl.Neb), but its Dec Coordinate had been incorrectly specified

Annotated CCD Image (70% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, Clear Filter
2024-10-13 04:54 UT (#1254051-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2024wak - Type Ia Supernova

SN 2024wak (Lepus)
SN 2024wak (Type: Ia) discovered 2024-09-22.504 UT by Fritz
Alias: ZTF24abitshb, Gaia24ctn
Discovery Magnitude 19.53 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 19.0
Confirmed SN Ia
Gaia, 2024-09-30 11:23 UT, mag 16.02
SN appears to be in WISEA J050159.70-135814.6
( TNS 2024wak | Gaia24ctn )

SN 2024wak - 2024-10-13 (T+20.6d)
Image below (2024-10-13.124) was taken 20.6 days after discovery of 2024wak
Position of reported supernova (distinct) is shown by white cross-hairs
Measured Magnitude +15.07 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-10-13 02:59 UT (#1254035)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024wak on Supernovae 2024 Page >>

This Web Page:	Images - Session 1254 (2024-10-12)
Last Updated :	2024-10-15
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages Images - Session 1254 (2024-10-12)