Comet: C/2020R4 ATLAS, Ion tail

Image:
Object: C/2020R4 ATLAS
DATE-OBS: 2021-05-04T16:04:18
EXPTIME(Seconds): B/V/R/I/g’2/r’2/i’2/z’2/900Exbb
SUBFRMS: B/V/R/I/g’2/r’2/i’2/z’2/60Exbb
OBJCTRA: 13 02 56.39
OBJCTDEC: +32 13 31.30
Catalogs/Filter Magnitude Results:
Astrometry Catalog: ATLAS: N, UCAC4: Y, GAIAEDR3: N
Photometry Catalog: : UCAC4: Y, APASS: N, ATLAS: N
Johnson/Bessel: (B): +., (V): +., (R): +., (I): +.
Sloan: g’2: +., r2: +., i’2: +., z’2: +.
Clear: CL: +14.10
Filters:
Sloan: u’2: N, g’2: N, r’2: N, i’2: N, z’2: N
Johnson/Bessel: U: N, B: N, V: N, R: N, I: N
Clear/Other Filters: Clear: N, Ex-bb: Y
Instruments:
Mount: SW EQ8-R
Switch: Pegasus UPB-2.0
Focuser: Sesto-Senso /FT
CCD: ATIK-383L+mono/Atik-EFW (9 positions)
TELESCOPE: C11, 1623.0mm
PRiSMv10, Tycho8.0, Astrometrica
http://www.alcor-system.com/new/index.html http://hyperion-astronomy.com/
https://www.tycho-tracker.com
http://www.astrometrica.at

Site:
ORIGIN: Cepheid Observatory, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
K.V
Measures:
S.M, B.K, V.A.
Remark:
Sky Clear
End

C/2020 R4 ATLAS

Image:
Object: C/2020 R4 ATLAS
DATE-OBS: 2021-04-02T22:59:39.4896
EXPTIME: 2040.00 (seconds)
SUBFRMS: 34
OBJCTRA: 19 42 07.77
OBJCTDEC: +00 00 51.90
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +14.3, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Tycho
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear.
End

Video Link: https://www.youtube.com/watch?v=7_AREOFLgZo

C/2017 K2 (PANSTARRS)

Image:
Object: C/2017 K2 (PANSTARRS) 
DATE-OBS: 2021-04-02T22:02:41.0592
EXPTIME: 2460.00 (seconds)
SUBFRMS: 41
OBJCTRA: 18 28 03.73
OBJCTDEC: +39 34 45.90
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +15.2, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Tycho
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear.
End

Comet C/2020 T2 (Palomar)

Image:
Object: Comet C/2020 T2 (Palomar)
DATE-OBS: 2021-03-21T21:25:26
EXPTIME: 1800.00 (seconds)
SUBFRMS: 30
OBJCTRA: 14 06 59.539
OBJCTDEC: +33 32 45.144
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +15.0
Bessell (R): +14.8, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Tycho, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Average Seeing, Sky Clear.
End

Comet 409P/LONEOS-Hill

Image:
Object: Comet 409P/LONEOS-Hill
DATE-OBS: 2021-02-17T22:11:27
EXPTIME: 3000.00 (seconds)
SUBFRMS: 25
OBJCTRA: 13 05 29.257
OBJCTDEC: +08 54 09.190
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +15.7, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear.
End

Comet C/2021 A1 (Leonard)

Image:
Object: Comet C/2021 A1 (Leonard)
DATE-OBS: 2021-02-12T23:17:45
EXPTIME: 2250.00 (seconds)
SUBFRMS: 50
OBJCTRA: 14 01 27.281
OBJCTDEC: +49 38 36.060
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +18.3, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear. As per, Prof. Seiichi Yoshida comet@aerith.net, it may attend mag around +4.0 and go visible to eyes in mid of Dec-2021
End

COMET C/2021 A4 (NEOWISE)

Image:
Object: Comet C/2021 A4 (NEOWISE)
DATE-OBS: 2021-02-10T14:41:31
EXPTIME: 990.00 (seconds)
SUBFRMS: 22
OBJCTRA: 07 29 52.575
OBJCTDEC: +65 13 20.642
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +14.9, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear
End

Comet C/2021 A2

Image:
Object: Comet C/2021 A2
DATE-OBS: 2021-02-05T15:34:36
EXPTIME: 855.00 (seconds)
SUBFRMS: 20
OBJCTRA: 07 08 29.439
OBJCTDEC: -04 06 49.090
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +14.2, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear
End

Comet 141P/Machholz

Image:
Object: Comet 141P/141P/Machholz
DATE-OBS: 2021-01-14T14:40:15
EXPTIME: 1980.00 (seconds)
SUBFRMS: 22
OBJCTRA: 00 24 49.591
OBJCTDEC: -06 43 13.196
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +14.8, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar, S. Mahawar, K.Vora
Remark:
Sky Clear
End

Comet 398P/Boattini

Image:
Object: Comet 398P/Boattini
DATE-OBS: 2021-01-06T15:17:36
EXPTIME: 3600.00 (seconds)
SUBFRMS: 30
OBJCTRA: 04 53 19.101
OBJCTDEC: +03 14 12.738
Instrument:
Catalog: UCAC4
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +14.6, Bessell (I): +*.*
CCD: ATIK-383L+
FILTERS: R
TELESCOPE: C11, 1623.0mm
PRiSMv10, Astrometrica
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.Agnihotri, B. Kumar,
S. Mahawar, K.Vora
Remark:
NIL
End