Photometry: HAT-P-19b

Exo-Planet, Class confirmed:
HAT-P-19b
Imaged/Calibration/Image solve:
PRiSM v10
Photometry and Data Fitting:
HOPS 3.0.4/Platform: Python 3.7.6
Instrument:
CCD: ATIK-383L+ mono
FILTERS: R
TELESCOPE: C8, 1263.0mm
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
V.K.A, B.K., S. M., K.V.
Remark:
Sky Clear
End

Photometry: V603 AQL

Image:
Object: V603 AQL
DATE-OBS: 2021-05-14T19:45:38
EXPTIME(Seconds): B/2010V/R/I/g’2/r’2/i’2/z’2/Exbb
SUBFRMS: B/67V/R/I/g’2/r’2/i’2/z’2/Exbb
OBJCTRA: 18 48 54.64
OBJCTDEC:  +00 35 02.9
Catalogs/Filter Magnitude Results:
Astrometry Catalog: ATLAS: Y, UCAC4: N, GAIADR2/GAIAEDR3: N
Photometry Catalog: : UCAC4: N, APASS: N, ATLAS: Y
Johnson/Bessel: (B): +., (V): +11.927., (R): +., (I): +.
Sloan: g’2: +., r2: +., i’2: +., z’2: +.
Clear: CL: +.
Filters:
Sloan: u’2: N, g’2: N, r’2: N, i’2: N, z’2: N
Johnson/Bessel: U: N, B: N, V: Y, R: N, I: N
Clear/Other Filters: Clear: N, Ex-bb: N
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.htmlhttp://hyperion-astronomy.com/
https://www.tycho-tracker.com
http://www.astrometrica.at

Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific 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

Photometry: V1405 Cas/N Cas 2021

Image:
Object: V1405 Cas/N Cas 2021
DATE-OBS: 2021-05-11T23:03:50
EXPTIME(Seconds): B/50V/R/I/g’2/r’2/i’2/z’2/Exbb
SUBFRMS: B/5V/R/I/g’2/r’2/i’2/z’2/Exbb
OBJCTRA: 23 24 47.73
OBJCTDEC: +61 11 14.8
Catalogs/Filter Magnitude Results:
Astrometry Catalog: ATLAS: N, UCAC4: Y, GAIADR2/GAIAEDR3: Y
Photometry Catalog: : UCAC4: Y, APASS: N, ATLAS: N
Johnson/Bessel: (B): +., (V): +5.247., (R): +., (I): +.
Sloan: g’2: +., r2: +., i’2: +., z’2: +.
Clear: CL: +.
Filters:
Sloan: u’2: N, g’2: N, r’2: N, i’2: N, z’2: N
Johnson/Bessel: U: N, B: N, V: Y, R: N, I: N
Clear/Other Filters: Clear: N, Ex-bb: N
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.htmlhttp://hyperion-astronomy.com/
https://www.tycho-tracker.com
http://www.astrometrica.at

Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific 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

Sloan g/r/i/z Photometry: ASASSN-21gq

Image:
Object: ASASSN-21gq
DATE-OBS: 2021-04-27T22:58:40.3008
EXPTIME(Seconds): *B/*V/*R/*I/240g’2/300r’2/240i’2/300z’2
SUBFRMS: *B/*V/*R/*I/4g’2/5r’2/4i’2/5z’2
OBJCTRA: 19 15 51.69
OBJCTDEC: -07 12 42.3
Instrument:
Astrometry Catalog: ATLAS: Y, UCAC4: N, GAIAEDR3: N
Photometry Catalog: : UCAC4: N, APASS: N, ATLAS: Y
Johnson/Bessel: (B): +*.*, (V): +*.*, (R): +*.*, (I): +*.*
Sloan: g’2: +14.105, r2: +13.409, i’2: +13.140, z’2: +12.935
CCD: ATIK-383L+
FILTERS:
Sloan: u’2: N,g’2: Y,r’2: Y,i’2: Y,z’2: Y
Johnson/Bessel: U: N,B: N,V: N,R: N,I: N,
TELESCOPE: C11, 1623.0mm
PRiSMv10, Tycho8.0
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
K.V
Measures:
S.M, B.K, V.A.
Remark:
Sky Clear, Full Moon
End

Sloan z’2

Sloan g/r/i/z Photometry: ASASSN-21fr

Image:
Object: ASASSN-21fr
DATE-OBS: 2021-04-15T22:39:47.7936
EXPTIME(Seconds): *B/*V/*R/*I/900g’2/900r’2/1050i’2/1680z’2
SUBFRMS: *B/*V/*R/*I/15g’2/15r’2/14i’2/14z’2
OBJCTRA: 18 36 21.85
OBJCTDEC: 37 32 56.40
Instrument:
Astrometry Catalog: ATLAS: Y, UCAC4: Y, GAIAEDR3: N
Photometry Catalog: : UCAC4: N, APASS: N, ATLAS: Y
Johnson/Bessel: (B): +*.*, (V): +*.*, (R): +*.*, (I): +*.*
Sloan: g’2: +14.815, r2: +15.174, i’2: +15.423, z’2: +15.634
CCD: ATIK-383L+
FILTERS:
Sloan: u’2: N,g’2: Y,r’2: Y,i’2: Y,z’2: Y
Johnson/Bessel: U: N,B: N,V: N,R: N,I: N,
TELESCOPE: C11, 1623.0mm
PRiSMv10, Tycho8.0
Site:
ORIGIN: Cepheid Observatory, India, Vorion Scientific, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
K.V
Measures:
S.M, B.K, V.A.
Remark:
Sky Clear, http://www.astronomy.ohio-state.edu/asassn/transients.html
End

Sloan g’2

V/R/I Photometry: ASASSN-21fh

Image:
Object: ASASSN-21fh
DATE-OBS: 2021-04-12T23:08:38
EXPTIME: 600.00 (seconds)
SUBFRMS: 20I/20R/15V
OBJCTRA: 17 09 08.11
OBJCTDEC: -37 30 40.9
Instrument:
Catalog: APASS
Bessell (B): +*.*, Bessell (V): +8.84*
Bessell (R): +8.03, Bessell (I): +7.09
CCD: ATIK-383L+
FILTERS: V/R/I
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. https://www.aavso.org/aavso-alert-notice-740
End

Electronic Telegram No. 4955
Central Bureau for Astronomical Telegrams
Mailing address: Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
e-mail: cbatiau at eps.harvard.edu (alternate cbat at iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network

V1710 SCORPII = NOVA SCORPII 2021 = PNV J17091000-3730500
Paul Camilleri, Katherine, Northern Territory, Australia, reports his
discovery of an apparent nova (mag 9.5) on three 5-s exposures taken on Apr.
12.7625 UT with a Nikon D3200 digital SLR camera (+ 85-mm-f.l. f/2 lens),
noting the variable to have an orange color; the approximate position was
given as R.A. = 17h09m50s, -37d30’50” (equinox J2000.0). The variable was
given the provisional designation PNV J17091000-3730500 automatically when it
was posted to the Central Bureau’s TOCP webpage. R. Fidrich, Budapest,
Hungary, provides position end figures 08s.11, 40″.9 measured on a B-band CCD
image obtained on Apr. 12.814 with an iTelescope 0.50-m f/6.8 reflector
located at Siding Spring, NSW, Australia. F. Kugel, Banon, France, measured
position end figures 08s.32, 42″.6 from three stacked 30-s CCD images taken
with a 195-mm-f.l. f/2.8 lens on Apr. 13.12. A. Pearce, Nedlands, W.
Australia, provides position end figures 08s.10, 40″.9 from a CCD image
obtained remotely on Apr. 13.632 with a 0.43-m f/6.8 reflector located at
Siding Spring (reference stars from the Gaia DR2 catalogue).
Additional digital-image magnitudes (unfiltered unless noted otherwise)
that have been reported for PNV J17091000-3730500: Apr. 11.395 UT, [16.8
(All-Sky Automated Survey for Supernovae; communicated by P. Schmeer,
Saarbruecken-Bischmisheim, Germany); 11.682, [13.8 (R. McNaught,
Coonabarabran, NSW, Australia; 59-s exposure with Canon 6D camera +
135-mm-f.l. f/2.8 lens); 11.758, [12 (Camilleri); 11.794, [13.5 (McNaught);
12.168, g = 11.1 (ASAS-SN; independent discovery reported by Schmeer; position
end figures 08s.11, 40″.4); 12.408, g = 10.4 (ASAS-SN; Schmeer); 12.55, 9.5
(R. Kaufman, Bright, Vic., Australia; green channel approximating V band,
Canon 800D camera + 200-mm-f.l. lens; image posted via the following URL
https://tinyurl.com/4t5akzyy); 12.583, 9.6 (McNaught); 12.687, 9.5 (McNaught);
12.796, 9.4 (McNaught); 12.814, B = 10.64 (Fidrich; the variable was very red,
with B-V being at least +1.5); 12.955, R = 8.03 (V. Agnihotri, Kota,
Rajasthan, India; communicated via E. O. Waagen, AAVSO); 12.965, I = 7.09
(Agnihotri); 12.972, V = 8.84 (Agnihotri); 13.12, 8.9 (Kugel); 13.372, B =
9.71 (J. Backman, Lappeenranta, Finland; via Waagen); 13.422, B = 10.05 (J.-F.
Hambsch, Mol, Belgium; via Waagen); 13.423, I = 6.74 (Hambsch); 13.424, V =
8.69 (Hambsch); 13.632, V = 8.53 (Pearce); 13.633, B = 10.32 (Pearce); 13.634,
I = 6.58 (Pearce); 13.787, 8.5 (F. Romanov, Yuzhno-Morskoy, Nakhodka, Russia;
from five stacked 5-s exposures taken with a Canon EOS 60D camera +
135-mm-f.l. f/5.6 lens at ISO 6400 with a hazy sky; image posted at website
URL https://www.flickr.com/photos/filipp-romanov/51114244018).
Visual magnitude estimates for PNV J17091000-3730500: Apr. 13.068 UT,
8.8 (A. Amorim, Florianopolis, Brazil; via Waagen); 13.128, 8.9 (L. Araujo,
Pelotas, Brazil; via Waagen); 13.342, 8.7 (Amorim); 13.715, 8.8 (C. Wyatt,
Walcha, NSW, Australia; via Waagen); 13.732, 8.8 (Pearce).
Waagen also informs the Bureau that Joshi et al. have reported that their
spectroscopy obtained on Apr. 12.916 UT with the Mt. Abu PRL 1.2-m telescope
(range 440-900 nm, resolutions about 500 and 2000) show this to be an “Fe II”-
type of classical nova caught early in its outburst, with H-alpha, H-beta, Fe
II, and O I lines showing P-Cyg profiles on a red continuum (details are given
at website URL https://www.astronomerstelegram.org/?read=14544).
E. Kazarovets informs the Central Bureau that the permanent GCVS
designation V1710 Sco has been given to this nova.

NOTE: These ‘Central Bureau Electronic Telegrams’ are sometimes
superseded by text appearing later in the printed IAU Circulars.

                     (C) Copyright 2021 CBAT

2021 April 14 (CBET 4955) Daniel W. E. Green

Photometry: C/2021 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

SN2021hiz/IC3322A

Image:
Object: SN2021hiz/IC3322A
DATE-OBS: 2021-04-04T17:28:28.060
EXPTIME: 4950.00 (seconds)
SUBFRMS: 55
OBJCTRA: 12 25 41.67
OBJCTDEC: +07 13 42.3
Instrument:
Catalog: ATLAS
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +14.0, 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, Star marked in blue box are ATLAS catalog data.
End

SN2021hpr/NGC3147

Image:
Object: SN2021hpr/NGC3147
DATE-OBS: 2021-04-04T16:44:14.22
EXPTIME: 1440.00 (seconds)
SUBFRMS: 16
OBJCTRA: 10 16 38.62
OBJCTDEC: +73 24 01.80
Instrument:
Catalog: ATLAS
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +15.7, 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, Star marked in blue box are ATLAS catalog data.
End

Astrometry and Photometry of Globular Star Cluster M13

We examine the astrometry and photometry of globular star cluster M13 using Gaia EDR3 and ATLAS catalogs. The Gaia EDR3 catalog is for astrometry and ATLAS catalog is for high precession differential photometry. The software Tycho 8.0 supports both the catalogs upto +22.0 magnitudes. If stars are well resolved (imaged at higher focal length), the results will be promising.

Image:
Object: M13
DATE-OBS: 2021-03-27T20:56:25.69
EXPTIME: 1320.00 (seconds)
SUBFRMS: 22
OBJCTRA: 16 41 46.016
OBJCTDEC: +36 27 13.50
Instrument:
Catalog: Gaia EDR3 + ATLAS
Bessell (B): +*.*, Bessell (V): +*.*
Bessell (R): +*.*, 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:
High Moon, Sky Clear.
End

The offline variant, “GRAPPA”, was developed by Marc Serrau.
Please also include the following acknowledgements if using the catalog in a published paper:

Acknowledgements:

  • Marc Serrau
  • ESA GAIA Mission as GRAPPA3 has made use of data from the European Space Agency
    (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing
    and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).

The acknowledgements for ALTAS catalog, to be used when publishing a paper, are as follows:
This work has made use of data from the Asteroid Terrestrial-impact Last Alert System (ATLAS) project.
ATLAS is primarily funded to search for near earth asteroids through NASA grants NN12AR55G, 80NSSC18K0284,
and 80NSSC18K1575; byproducts of the NEO search include images and catalogs from the survey area.
The ATLAS science products have been made possible through the contributions of the University of Hawaii
Institute for Astronomy, the Queen’s University Belfast, the Space Telescope Science Institute,
and the South African Astronomical Observatory.

References:
Tonry, J.L., Denneau, L., Flewelling, H., Heinze, A.N., Onken, C.A., Smartt, S.J., Stalder, B., Weiland,
H.J., Wolf, C. (2018). “The ATLAS All-Sky Stellar Reference Catalog.” Astrophys. J. 867, A105.
Kostov, A., Bonev, T. (2017). “Transformation of Pan-STARRS1 gri to Stetson BVRI magnitudes.
Photometry of small bodies observations.” Bulgarian Astron. J. 28, 3 (AriXiv:1706.06147v2).