David's Astronomy - Images 2024-10-14 (S1255)

David's Astronomy Pages
Images - Session 1255 (2024-10-14)

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Objects Session Notes

T CrB - Variable Star

AT2023vwf - Type YSO? Transient

AT 2024tde - Type M dwarf Transient

AT2024uvw - Type CV? Transient (non-detection)

AT 2024vhz - Type CV? Transient

AT 2024wpc - Type AGN Transient in PGC 1875557

AT 2024xhn - Type Nova? Transient

AT 2024xiq - CV Type Transient (non-detection)

AT 2024xiu - CV Type Transient

AT 2024xpy - Type BL Transient

Frosty Leo Nebula - Protoplanetary Nebula (PPN)

IC 2190 - Spiral Galaxy with Type Ia Supernova 2024dhp

M31 - Spiral Galaxy with Transient AT 2024xtk

NGC 1275 - Spiral Galaxy with Type IIP Supernova 2024xav

NGC 2830 - Spiral Galaxy with Transient AT 2024vsu

PGC 29488 - Elliptical Galaxy (Leo I, Local Group) - 0.9 mly

SN 2024ugc - Type Ia Supernova

SN 2024wak - Type Ia Supernova

UGC 4957 - Spiral Galaxy with Transient AT 2024vrq

Variable Stars (photometric monitoring)

- RZ LMi, BL Lac

Nearby Stars (astrometric monitoring)

- Teegardens Star

- Attempted Night Session (10.6 hrs),. Delayed by and interupted by cloud & CCDCamera issues.

- 12" LX200 + ST-10XME for imaging

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

- Ambient Temperature: 7°C (min)

- CCD Temperature: -15°/-20°C

- Notes from 2024-10-14 >>

-

Observing Result

T CrB - Variable Star

T CrB (Corona Borealis)
Alias: GCVS T CrB, HIP 78322, SAO 84129, HD 143454
Max Magnitude 2.0
Min Magnitude 10.8
Spectral: M3III+pec(NOVA)
( VSX T CrB )

T CrB (V Band) - 2024-10-14 (S1255)		T CrB - Photometry - 2024-10-14
		2024-10-14 19:44 UT Altitude: 28.0°, Airmass: 2.129 T CrB : 10.25 (V Mag), 11.54 (B Mag), 1.29 (B-V) Fading
Annotated CCD Image (50% size, linear scale) 3 x 20s exposure (average combine), 3x3 binning, V Filter 2024-10-14 19:44 UT (#1255015-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (not shown) 3 x 30s exposure (average combine), 3x3 binning, B Filter 2024-10-14 19:43 UT (#1255014-18)

More Images & Data for T CrB >>

AT2023vwf - Type YSO? Transient

AT 2023vwf (Delphinus)
AT 2023vwf (Type: YSO?) discovered 2023-10-18.286 UT by Gaia
Alias: Gaia23czl
Alerting Magnitude 15.90 (G-Gaia Filter)
vs Historic Magnitude 16.32
0.4 mag brightening in candidate YSO
( TNS 2023vwf | Gaia23czl )

AT 2023vwf - 2024-10-14 (T+362.6d)
Image below (2024-10-14.917) was taken 362.6 days after discovery of 2023vwf
Position of transient object (not longer visible or not distinguishable) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.0 (Clear Filter)
Since normal G-Gaia magnitude is 16.32
and Limiting Magnitude of Image is around 18.0
it suggests that Transient is not distinguishable in the glare
from adjacent star GSC 1100:663 (mag 13.2)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-14 22:08 UT (#1255040-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2023vwf - detail, 2024-10-14 (T+362.6d)
Enlarging image to 250% size indicates that AT 2023vwf is just visible adjacent to GSC 1100:663

Annotated CCD Image (100% size, linear scale, cropped)
Image details as above

Images of AT 2023vwf on Transients 2023 Page >>

AT 2024tde - Type M dwarf Transient

AT 2024tde (Andromeda)
AT 2024tde (Type: M dwarf) discovered 2024-08-25.927 UT by XOSS
Alias: PSP24U
Discovery Magnitude 15.67 (Clear Filter)
UV candidate classified by XOSS
( TNS 2024tde | Gaia23czl )

AT 2024tde - 2024-10-15 (T+50.1d)
Image below (2024-10-15.069) was taken 50.1 days after discovery of 2024tde
Position of transient object (very faint) is shown by white cross-hairs
Measured Magnitude +17.98 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 01:47 UT (#1255111-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024tde on Transients 2024 Page >>

AT2024uvw - Type CV? Transient (non-detection)

AT 2024uvw (Cassiopeia)
AT 2024uvw (Type: CV?) discovered 2024-09-06.787 UT by XOSS
Alias: KATS24R008, TCP J01131355+5038352
Discovery Magnitude 15.56 (Clear Filter)
CV candidate classified by XOSS
( TNS 2024tde | Gaia23czl )

AT 2024uvw - 2024-10-14 (T+38.2d)
Image below (2024-10-14.994) was taken 38.2 days after discovery of 2024uvw
Position of transient object (not visible) is shown by white cross-hairs
Limiting Magnitude +19.4 (Clear Filter)
Galaxies in same FOV are
UGC 761 (PGC 4394. catalog mag 16.3) &
PGC 212682 (catalog mag 17.7)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 00:02 UT (#1255076-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024uvw - Enlarged View, 2024-10-14 (T+38.2d)
Report transient position is indicated by white cross-hairs and is offset from the adjacent,
No object visible at reported position of transient in image below
or on DSS2 Colour or PanSTARRS images in Aladin

Annotated CCD Image (250% size, linear scale, cropped)
Image details as above

Images of AT 2024uvw on Transients 2024 Page >>

AT 2024vhz - Type CV? Transient

AT 2024vhz (Cepheus)
AT 2024vhz (Type: CV?) discovered 2024-09-12.741 UT by XOSS
Alias: KATS24R009, TCP J21272983+6037046
Discovery Magnitude 16.29 (Clear Filter)
( TNS 2024vhz )

AT 2024vhz - 2024-10-15 (T+32.4d)
Image below (2024-10-15.092) was taken 32.4 days after discovery of 2024vhz
Position of reported transient (very faint, fading) is shown by white cross-hairs
Measured magnitude +17.27 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 02:21 UT (#1255128-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024vhz - Earlier Image, 2024-09-16 (T+3.3d)
Image below (2024-09-16.054) was taken 3.3 days after discovery of 2024vhz
Position of reported transient (faint) is shown by white cross-hairs
Measured magnitude +15.22 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-09-16 01:27 UT (#1244169-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024vhz on Transients 2024 Page >>

AT 2024wpc - Type AGN Transient in PGC 1875557

AT 2024wpc (Bootes)
In 2MASX J14222018+2942550 / PGC 1875557
AT 2024wpc (Type: AGN) discovered 2024-09-22.614 UT by Gaia
Alias: Gaia24cps
Alerting Magnitude 16.20 (G-Gaia Filter)
vs Historic Magnitude 16.61 +/- 0.12 SD
0.3 mag brightening in Seyfert1 galaxy 2MASX J14222018+2942550
( TNS 2024wpc | Gaia24cps )

AT 2024wpc - 2024-10-14 (T+22.2d)
Image below (2024-10-14.805) was taken 22.2 days after discovery of 2024wpc
Position of reported transient (distinct, stable) is shown by white cross-hairs
Measured Magnitude +14.93 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-10-14 19:19 UT (#1255007)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024wpc 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 - 2024-10-15 (T+10.4d)
Image below (2024-10-15.108) was taken 10.4 days after discovery of 2024xhn
Position of reported transient (distinct, fading) is shown by white cross-hairs
Measured Magnitude +13.76 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 02:44 UT (#1255135-39)
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 >>

AT 2024xiq - CV Type Transient (non-detection)

AT 2024xiq (Capricornus)
AT 2024xiq (Type: CV) discovered 2024-10-01.807 UT by Gaia
Alias: Gaia24cut
Alerting Magnitude 16.80 (G-Gaia Filter)
vs Historic Magnitude 19.43 +/- 0.19 SD
Outburst in candidate CV
( TNS 2024xiq | Gaia24cut )

AT 2024xiq - 2024-10-14 (T+13.0d)
Image below (2024-10-14.826) was taken 13.0 days after discovery of 2024xiq
Position of reported transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +17.0 (Clear Filter)
Transient has likely returned to its normal
magnitude range +18.8 to +20.0 (Gaia)
Image taken at Altitude 10.3°, Airmass: 5.468

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-10-14 19:53 UT (#1255022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024xiq on Transients 2024 Page >>

AT 2024xiu - CV Type Transient

AT 2024xiu (Leo Minor)
AT 2024xiu (Type: CV) discovered 2024-10-02.482 UT by Gaia
Alias: Gaia24cuv
Alerting Magnitude 16.58 (G-Gaia Filter)
vs Historic Magnitude 18.48 +/- 0.36 SD
Outburst in candidate CV
( TNS 2024xiu | Gaia24cuv )

AT 2024xiu - 2024-10-15 (T+12.7d)
Image below (2024-10-15.146) was taken 12.7 days after discovery of 2024xiu
Position of reported transient (very faint) is shown by white cross-hairs
Estimated Magnitude +18.6 (Clear Filter)
Transient has returned to its normal magnitude range (=17.7 to +19.7)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 03:34 UT (#1255154-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024xiu on Transients 2024 Page >>

AT 2024xpy - Type BL Transient

AT 2024xpy (Hercules)
AT 2024xpy (Type: BL) discovered 2024-10-04.838 UT by Gaia
Alias: Gaia24cvy
Discovery Magnitude 16.17 (G-Gaia Filter)
vs Historic Magnitude 17.28 +/- 0.29 SD
Brightening in known BL Lac
BL Lac type object 2FGL J1844.3+1548
( TNS 2024xpy | Gaia24cvy | Simbad 2FGL J1844.3+1548 )

AT 2024xpy - 2024-10-14 (T+10.0d)
Image below (2024-10-14.865) was taken 10.0 days after discovery of 2024xpy
Position of reported transient (faint, fading) is shown by white cross-hairs
Measured Magnitude +16.20 (Clear Filter)
Relatively poor image (single frame)

Annotated CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-10-14 20:45 UT (#1255036)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024xpy on Transients 2024 Page >>

Frosty Leo Nebula - Protoplanetary Nebula (PPN)

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

Annotated CCD Image (50% size, square root scale)
5 x 45s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 04:36 UT (#1255177-81)
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)
Image details as above

Frosty Leo Nebula - Earlier Image (Jan 2021)

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

Spectra
Spectra is noticeably unlike that of planetary nebulae

Annotated CCD Image (50% size, square root scale)
5 x 120s exposure (average combine), 2x2 binning, S Filter
2024-10-15 04:45 UT (#1255182-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 2190 - Spiral Galaxy with Type Ia Supernova 2024dhp

IC 2190 with SN 2024dhp (Auriga)
SN 2024dhp (Type: Ia) discovered 2024-02-28.291 UT by ZTF
Alias: ZTF24aagirej
Discovery Magnitude 18.33 (r-ZTF Filter)
vs Prior Non-Detection Limiting Mag 16.0 (g-ZTF Filter)
( TNS 2024dhp )

IC 2190 with SN 2024dhp - 2024-10-15 (T+229.9d)
Image below (2024-10-15.154) was taken 229.9 days after discovery of 2024dhp
Position of reported SN (faded & no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 03:51 UT (#1255160-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 2190 with SN 2024dhp - Earlier Image, 2024-03-04 (T+5.6d)
Image below (2024-03-04.933) was taken 5.6 days after discovery of 2024dhp
Position of reported SN (faint) is indicated by white cross-hairs.
Measured Magnitude +16.38 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-03-04 22:29 UT (#1196077-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024dhp (in IC 2190) on Supernova 2024 Page >>

M31 - Spiral Galaxy with Transient AT 2024xtk

M31 with AT 2024xtk (Andromeda)
AT 2024xtk (Type: unk) discovered 2024-10-10.689 UT by KNTraP
Alias: PSP24X, PNV J00423476+4115351
Discovery Mag 16.46 (Clear Filter)
( Rochester Supernova site | TNS 2024xtk )

M31 with AT 2024xtk
Image taking with secondary scope showing position of reported transient (blue circle)
relative to outline of M31 galaxy (white ellipse) & M31 Galaxy centre (labelled)

CMOS Image (16% size)
10s exposure, 1x1 binning
2024-10-14 22:26 UT (23:26:41 LT), Cam2_Ref
TS 80mm APO, ZWO ASI178MC & PHD2

M31 with AT 2024xtk (T+4.2d)
Position of reported transient is shown by white circle

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-14 22:36 UT (#1255063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with AT 2024xtk - 2024-10-14 (T+4.2d)
Image below (2024-10-14.936) was taken 4.2 days after discovery of 2024xtk
Position of reported transient (barely visible) is shown by white cross-hairs

Annotated CCD Image (125% size, linear scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-14 22:36 UT (#1255063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024xtk (in M31) on Transients 2024 Page >>

NGC 1275 - Spiral Galaxy with Type IIP Supernova 2024xav

NGC 1275 with SN 2024xav (Perseus)
SN 2024xav (Type: IIP) discovered 2024-09-30.036 UT by GOTO
Alias: GOTO24gor, ATLAS24otv
Discovery Magnitude 18.63 (L-GOTO Filter)
vs Prior Non-Detection Limiting Magnitude 19.2
( TNS 2024xav )

NGC 1275 with SN 2024xav - 2024-10-15 (T+15.0d)
Image below (2024-10-15.021) was taken 15.0 days after discovery of 2024xav
Position of reported transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.2 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 00:38 UT (#1255088-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024xav (in NGC 1275) on Supernovae 2024 Page >>

NGC 2830 - Spiral Galaxy with Transient AT 2024vsu

NGC 2830 with AT 2024vsu (Lynx)
AT 2024vsu (Type: unk) discovered 2024-09-19.819 UT by Koichi Itagaki
Discovery Magnitude 17.5 (Clear Filter)
( TNS 2024vsu )

NGC 2830 with AT 2024vsu - 2024-10-15 (T+25.3d)
Image below (2024-10-15.124) was taken 25.3 days after discovery of 2024vsu
Position of reported transient (very faint) is shown by white cross-hairs
Estimated Magnitude +17.4 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 03:06 UT (#1255142-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024vsu (in NGC 2830) on Transients 2024 Page >>

PGC 29488 - Elliptical Galaxy (Leo I, Local Group) - 0.9 mly

PGC 29488 / Leo I (Leo)

Annotated CCD Image (70% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 05:05 UT (#1255190-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 29488 - Earlier Image (Dec 2004)
Barely visible due to very low surface brightness,

CCD Image
3 x 60 sec (average combine), C Filter
2004-12-11 05:28 h UT (#79003-06)
8" LX200 + ST-7E

SN 2024ugc - Type Ia Supernova

SN 2024ugc (Perseus)
SN 2024ugc (Type: Ia) discovered 2024-08-24.694 UT by ATLAS
Alias: ATLAS24nsj, Gaia24clr
Discovery Magnitude 16.84 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.37
( TNS 2024ugc | Gaia24clr)

SN 2024ugc - 2024-10-14 (T+51.3d)
Image below (2024-10-14.983) was taken 51.3 days after discovery of 2024ugc
Position of reported supernova (faint, fading) is shown by white cross-hairs
Measured Magnitude +17.69 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-14 23:43 UT (#1255070-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024ugc on Supernovae 2024 Page >>

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 - 2024-10-15 (T+22.5d)
Image below (2024-10-15.050) was taken 22.5 days after discovery of 2024wak
Position of reported supernova (distinct) is shown by white cross-hairs
Measured Magnitude +15.24 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-15 01:19 UT (#1255096-99)
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 >>

UGC 4957 - Spiral Galaxy with Transient AT 2024vrq

UGC 4957 with AT 2024vrq (Cancer)
AT 2024vrq (Type: unk) discovered 2024-09-18.521 UT by ZTF
Alias: ZTF24abibxfg
Discovery Magnitude 18.07 (r-ZTF Filter)
( TNS 2024vrq )

UGC 4957 with AT 2024vrq - 2024-10-15 (T+26.7d)
Image below (2024-10-15.175) was taken 26.7 days after discovery of 2024vrq
Position of reported transient (very faint) 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
2024-10-15 04:21 UT (#1255170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024vrq (in UGC 4957) on Transients 2024 Page >>

This Web Page:	Images - Session 1255 (2024-10-14)
Last Updated :	2024-10-22
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages Images - Session 1255 (2024-10-14)