David's Astronomy Pages CCD Images - Session 945 (2021-12-28)

Images (S944)

Images Main

Home Page

Images (S946)

Objects

Session Notes

NGC 1587 - Elliptical Galaxy (LGG 117, VV1104, Holmberg 76) Nova Cas 2021 - Nova (V1405 Cas) 132P/Helin-Roman-Alu - Comet UGC 1161 - Spiral Galaxy with Type Ia Supernova 2020acch NGC 7446 - Elliptical Galaxy with Type Ia Supernova 2021agdd C/2019 L3 (ATLAS) - Comet Nova Per 2020 - Nova (V1112 Per, AT2020abap) IC 2149 - Planetary Nebula UGC 1971 - Galaxy with Type II Supernova 2021afkk NGC 1569 - Irregular Galaxy with Type HPM Transient AT2021aczn AT2021agdv - Variable Star Transient  (GSC 5966:2500) UGC 3855 - Spiral Galaxy with Type II Supernova 2021agco UGC 4002 - Spiral Galaxy with Type II Supernova 2021wvy UGC 4671 - Spiral Galaxy with Type Ia Supernova 2021afsj NGC 2692 - Spiral Galaxy NGC 2713 - Spiral Galaxy NGC 2716 - Spiral Galaxy 67P/Churyumov-Gerasimenko - Comet NGC 2761 - Spiral Galaxy with Type Ia Supernova 2021aggu      Variable Stars (photometric monitoring) - SY Cnc, BL Lac, FU Ori      Nearby Stars (astrometric monitoring) - None

- Late evening session 6.7 hours, cut short by development of cloud at 03:00 -   - 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 2021-12-28 >>    [ Local Files >> ]

NGC 1587 - Elliptical Galaxy (LGG 117, VV1104, Holmberg 76)

NGC 1587 (Taurus) Alias: LGG 117, VV1104, Holmberg 76 NGC 1587/1588, Ast. Now Challenge, Dec 2021 [ Deep Sky Challanges (Ast.Now) , Vorontsov-Velyaminov Galaxies ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-28 20:39 UT (#945004-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1587 & NGC 1588 - Detail Interacting Galaxies

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

Negative CCD Image (100% size, log scale, cropped) Image details as above

Back to Top

Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT2021hkn, V1405 Cas

Nova Cas 2021 / AT2021hkn - 2021-12-28 (T+285.4d) Image below (2021-12-28.872) was taken 285.4 days after discovery of Nova Nova is shown by white cross hairs.  Measured magnitude +9.13 (linked with Detection Threshold = 50)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2021-12-28 20:56 UT (#945011-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-28 (T+285.4d)

Spectra produced in AstroMain using Image taken with Star Analyser 200 5 x 30s exposure (average combine), 2x2 binning, S Filter 2021-12-28 21:00 UT (#945016-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Cas 2021 on Novae Page >>

Back to Top

132P/Helin-Roman-Alu - Comet

132P/Helin-Roman-Alu (passing through Cetus) Sun Distance 1.75 AU (receeding) Earth Distance 1.21 AU (181.6 million km)		132P/Helin-Roman-Alu - 2021-12-28, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 66.03 arcsec/hr, Dec 28.41 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-28 21:11 UT (#945024-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, square root scale, cropped) 6 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-28 21:13 UT (#945024-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 132P/Helin-Roman-Alu on Comets 2021 Page >>

Back to Top

UGC 1161 - Spiral Galaxy with Type Ia Supernova 2020acch 

UGC 1161 with SN 2020acch (Andromeda) SN 2020acch (Type: Ia,  zhost=0.017072) discovered 2020/12/10.204 UT by ZTF Alias: ZTF20acvziuf  ( Rochester Supernova site )

UGC 1161 with SN 2020acch  - 2021-12-28 (T+383.7d) Image below (2021-12-28.891) was taken 383.7 days after discovery of SN 2020acch Position of earlier SN (no longer visible) is shown by white cross hairs.

Annotated CCD Image  (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-28 21:32 UT (#945033-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 1161 with SN 2020acch  - Earlier Image, 2020-12-20 (T+10.6d) Image below (2020-12-20.774) was taken 10.6 days after discovery of SN 2020acch SN is shown by white cross hairs.  Magnitude ~ +16.0

Annotated CCD Image  (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-12-20 18:34 UT (#840036-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020acch (UGC 1161) on Supernovae 2020 Page >>

Back to Top

NGC 7446 - Elliptical Galaxy with Type Ia Supernova 2021agdd

NGC 7446 with SN2021agdd (Andromeda) SN 2021agdd (Type: Ia) discovered 2021-12-07.152 UT by DLT40 Alias: DLT21ag  ( Rochester Supernova site | Discovery Image  )

NGC 7446 with SN2021agdd - 2021-12-28 (T+21.8d) Image below (2021-12-28.913) was taken 21.8 days after discovery of 2021agdd SN is shown by white cross hairs.  Measured Magnitude ?? (unable to isolate centroid in CCDSoft)

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-28 22:04 UT (#945046-50) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN2021agdd (NGC 7446) on Supernovae 2021 Page >>

Back to Top

C/2019 L3 (ATLAS) - Comet

C/2019 L3 (ATLAS) (passing through Gemini) Sun Distance 3.56 AU (approaching) Earth Distance 2.59 AU (388.1 million km)		C/2019 L3 (ATLAS)  - 2021-12-28, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -38.93 arcsec/hr, Dec -26.07 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-28 22:21 UT (#945056-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-28 22:21 UT (#945053-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 L3 (ATLAS) on Comets 2021 Page >>

C/2019 L3 (ATLAS) Inverse Spectrum

C/2019 L3 (ATLAS)  - 2021-12-28

False Colour CCD Image (70% size, log scale) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-28 22:21 UT (#945053-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Back to Top

Nova Per 2020 - Nova (V1112 Per, AT2020abap)

Nova Per 2020 (Perseus) Nova in Perseus discovered 2020/11/25.807 [ Novae ] Nova Per 2020 discovered independently by Seiji Ueda and Stanislav Korotkiy et al AT2020abap (Type: CV) reported 2020/11/27.230 UT by PGIR Alias: N Per 2020 , PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232, V1112 Per

Nova Per 2020 - 2021-12-28 (T+398.1d) Image below (2021-12-28.938) was taken 398.1 days after discovery of nova Nova is shown by white cross hairs.  Measured magnitude +15.95

Annotated CCD Image (100% size, linear scale, cropped) 2 x 90s exposure (average combine), 3x3 binning, C Filter 2021-12-28 22:36 UT (#945065-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Per 2020 on Novae Page >>

Back to Top

IC 2149 - Planetary Nebula

IC 2149 (Auriga)  [ Planetary Nebula ]

Annotated CCD Image  (50% size, square root scale) 5 x 120s exposure (average combine), 3x3 binning, C Filter 2021-12-28 22:52 UT (#945071-75) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 2149 - Detail

CCD Image  (150% size, log scale, cropped) Image details as above

IC 2149 - Spectra Image taken with Star Analyser 200 (zero order image on left, 1st order spectra in middle) Spectra shows a typical Pl.Neb signature with a central star

CCD Image  (100% size, square root scale, rotated, cropped) 4 x 90s exposure (average combine), 2x2 binning, S Filter 2021-12-28 23:01 UT (#945076-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Spectra produced in AstroMain using Image taken with Star Analyser 200 4 x 90s exposure (average combine), 2x2 binning, S Filter 2021-12-28 23:01 UT (#945076-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Back to Top

UGC 1971 - Galaxy with Type II Supernova 2021afkk

UGC 1971 with SN 2021afkk (Triangulum) SN 2021afkk (Type: II) discovered 2021-11-25.371 UT by ATLAS Alias: ATLAS21bmvp. Magnitude +18.2 at discovery.   Distance 196 Mly (60 Mpc)  (Rochester Supernova site | Enrico Prosperi image )

UGC 1971 with SN 2021afkk - 2021-12-28 (T+33.6d) Image below (2021-12-28.966) was taken 33.6 days after discovery of 2021afkk Supernova reported position is shown by white cross-hairs Measured magnitude +15.25 (SN + Galaxy Nucleus)  - faded since T+3.7d

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-28 23:20 UT (#945083-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021afkk (UGC 1971) on Supernovae 2021 Page >>

Back to Top

NGC 1569 - Irregular Galaxy with Type HP Transient AT2021aczn

NGC 1569 with AT2021aczn (Camelopardalis) AT2021aczn (Type: HPM) discovered 2021-11-01.000 UT by Jordi Camarasa (  (Rochester Supernova site | Odd Trondal image )  HPM - High Proper Motion star ?

NGC 1569 - 2021-12-28 (T+58.0d) Image below (2021-12-28.981) was taken 58.0 days after reported discovery of 2021aczn No indication of any obvious transient object (new image again compares well with an image taken in 2013)

CCD Image (125% size, log scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-28 23:42 UT (#945091-95) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1569 - Earlier Image  2021-11-09 (T+8.9d) Image below (2021-11-09.898) was taken 8.9 days after reported discovery of 2021aczn The object marked as a 'Supernova' in Odd Trondal image is shown in the  image below by white cross-hairs, but the feature doesn't seem to have changed since image taken in 2013

Annotated CCD Image (125% size, log scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-09 21:42 UT (#932060-64) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1569 - Earlier Image (2013)

CCD Image (125% size, log scale, cropped) 4 x 120 sec exposure (average combine), 3x3 binning, C Filter 2013-10-15 19:08hUT (#549026-31) 12" LX200R  (at f/9.7) + ST-10XME

Back to Top

AT2021agdv - Variable Star Transient  (GSC 5966:2500)

AT2021agdv (Canis Major) AT2021agdv (Type: Star, class unknown ) discovered 2021-12-07.784 UT by Gaia Alias: Gaia21fly, GSC 5966:2500 Alert triggered at magnitude +11.24 (vs Historic magnitiude +11.55)  ( Rochester Supernova site | Gaia21fly

AT2021agdv - 2021-12-28 (T+21.2d) Image below (2021-12-28.998) was taken 21.2 days after discovery of 2021agdv Measured magnitude +11.45 (fading ?) (vs previous measurement +11.3,  2021-12-17) (vs catalog mag +11.4)

Annotated CCD Image  (100% size,  linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2021-12-29 00:00 UT (#945100-03) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Back to Top

UGC 3855 - Spiral Galaxy with Type II Supernova 2021agco

UGC 3855 with SN2021agco (Lynx) SN 2021agco (Type: II) discovered 2021-12-05.564 UT by XOSS Alias: PSP21al  ( Rochester Supernova site | Andrea Mantero image | Jordi Camarasa image)

UGC 3855 with SN2021agco - 2021-12-29 (T+23.5d) Image below (2021-12-29.028) was taken 23.5 days after discovery of 2021agco Position of reported SN (very faint/not visible) is shown by white cross-hairs

Annotated CCD Image  (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 00:48 UT (#945120-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021agco (UGC 3855) on Supernovae 2021 Page >>

Back to Top

UGC 4002 - Spiral Galaxy with Type II Supernova 2021wvy

UGC 4002 with SN2021wvy (Lynx) SN 2021wvy (Type: II) discovered 2021-08-23.520 UT by ZTF Alias: ZTF21abvdikq, Gaia21dym Magnitude at discovery +18.02  ( Rochester Supernova site | Gaia21dym ]

UGC 4002 with SN2021wvy - 2021-12-29 (T+127.5d) Image below (2021-12-29.047) was taken 127.5 days after discovery of 2021wv Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image  (150% size, square root scale, cropped 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 01:16 UT (#945134-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021wvy (UGC 4002) on Supernovae 2021 Page >>

Back to Top

UGC 4671 - Spiral Galaxy with Type Ia Supernova 2021afsj

UGC 4671 with SN2021afsj (Ursa Major) SN 2021afsj (Type: Ia) discovered 2021-11-29.718 UT by Shuji Tokuoka Alias: Gaia21flf, ZTF21acqstfo  ( Rochester Supernova site | Gaia21flf  )

UGC 4671 with SN2021afsj - 2021-12-29 (T+29.3d) Image below (2021-12-29.062) was taken 29.3 days after discovery of 2021afsj Position of SN is shown by white cross-hairs Measured magnitude +14.6

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 01:38 UT (#945141-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021afsj (UGC 4671) on Supernovae 2021 Page >>

Back to Top

NGC 2692 - Spiral Galaxy

NGC 2692 (Ursa Major) Alias:   PGC 25142 (Near to UGC 4671 with SN2021afsj )

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 01:38 UT (#945141-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2692 - Earlier Wider View Image (2021-12-16)

Annotated CCD Image  (50% size, square root scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-16 23:56 UT (#942179-82) 12" LX200R (at f/10.4) + ST-10XME Non-guided

Back to Top

NGC 2713 - Spiral Galaxy

NGC 2713 (Hydra) Ast.Now Deep Sky Challenge Object, Mar 2021 [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 01:59 UT (#945148-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2713 - Detail

CCD Image (100% size, square root scale, cropped) Image details as above

Negative CCD Image (100% size, square root scale, cropped) Image details as above

Back to Top

NGC 2716 - Spiral Galaxy

NGC 2716 (Hydra) Ast.Now Deep Sky Challenge Object, Mar 2021 [ Deep Sky Challanges (Ast.Now) ]

Annotated CCD Image (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 02:14 UT (#945155-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2716 - Detail

CCD Image (100% size, square root scale, cropped) Image details as above

Back to Top

67P/Churyumov-Gerasimenko - Comet

67P/Churyumov-Gerasimenko (passing through Cancer) Sun Distance 1.40 AU (receeding) Earth Distance 0.47 AU (70.6 million km) Poor contrast due to bright sky & poor sky/cloud		67P/Churyumov-Gerasimenko - 2021-12-29, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -17.51 arcsec/hr, Dec 9.03 arcsec/hr) Poor contrast due to bright sky & poor sky/cloud
Annotated CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-29 02:39 UT (#945170-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-12-29 02:39 UT (#945170-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 67P/Churyumov-Gerasimenko on Comets 2021 Page >>

Back to Top

NGC 2761 - Spiral Galaxy with Type Ia Supernova 2021aggu

NGC 2761 with SN2021aggu (Cancer) SN 2021aggu (Type: Ia) discovered 2021-12-12.757 UT by ATLAS Alias: ATLAS21bnhv, Gaia21fnr  ( Rochester Supernova site | Gaia21dym ]

NGC 2761 with SN2021aggu

Annotated CCD Image  (50% size, square root scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 03:00 UT (#945180-82) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2761 with SN2021aggu - 2021-12-29 (T+16.4d) Image below (2021-12-29.119) was taken 16.4 days after discovery of 2021aggu Position of reported SN (faint) is shown by white cross-hairs

Annotated CCD Image  (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-12-29 01:16 UT (#945134-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021aggu (NGC 2761) on Supernovae 2021 Page >>

Back to Top