exoclock

Qatar-5b

Discovered by: Alsubai et al. 2017

The Star
Simbad
GAIA
2MASS		 Qatar 5
DR2 382111248777193216
J00281293+4203407
RA 00:28:12.9437 DEC +42:03:40.943
Parallax
2.693 mas		 P.M. RA
0.919 mas/y		 P.M. DEC
-6.509 mas/y
MagV
12.82		 MagR
12.86		 MagI*
12.018		 MagJ
11.348		 MagH
11.089		 MagK
10.956
MagG
12.524		 MagGBP
12.915		 MagGRP
11.987
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2457489.3612 ± 0.00017 BJDTDB
Period
2.8793002 ± 1e-06 days
Transit Parameters
Alsubai et al. 2017
Rp/Rs
0.1061 ± 0.0013		 a/Rs
8.3 +0.3 -0.3
 i
88.7 +0.9 -0.9 deg
e
-		 ω
- deg
DepthR*
14.94 mmag		 Duration*
2.9 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Alsubai et al. 2017
Teff
5747.0 +49.0 -49.0 K
 Log(g)
4.43 +0.04 -0.04 cm/s2
 Fe/H
0.38 +0.08 -0.08 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		MEDIUM
8 (2)

3

-0.1±0.4

Qatar-5b


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2021-08-17 Yves Jongen
Rasteau Observatory		 Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		 -1.1 ± 1.2
2021-08-15 Vojtěch Školník
Hvezdarna Valasske Mezirici		 Meade LX90 ACF
MI C2-7000A / Clear / 180.0		 -0.8 ± 1.2
2020-11-05 John Savage
Z42 Rushay Farm Observatory		 Celestron 14Edge
ZWO ASI6200MM / R / 60.0		 3.1 ± 2.0 - Data available
2020-10-31 Pere Guerra
Observatori Astronòmic Albanyà		 16" Meade ACF F8
Moravian G4-9000 / Astrodon ExoPlanet-BB / 100.0		 1.7 ± 1.9 - Data available
2020-10-10 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		 Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / Lum / 90.0		 -1.2 ± 0.6 - Data available
2020-09-17 Danilo Sedita
Osservatorio Sedita Castrofilippo		 RC GSO 14"
Moravian G2-1600 / R / 60.0		 -2.3 ± 1.6 - Data available
2017-08-21 Anaël Wünsche
Observatoire des Baronnies Provençales		 Astelco
FLIPL230 / Lum / 120.0		 3.1 ± 0.9 - Data available
2017-08-21 Mario Morales Aimar
Observatorio de Sencelles MPC K14		 10" Meade Schmidt Cassegrain
SBIG ST7-XME / Clear / 120.0		 -1.2 ± 2.9


Literature Mid-times

Observation
Date		 Mid-time Time format Reference O-C
minutes
2018-08-11 2458341.63779 ± 0.00127 BJD_TDB Mallonn et al. 2019 5.4 ± 1.8
2018-08-11 2458341.63656 ± 0.00154 BJD_TDB Mallonn et al. 2019 3.6 ± 2.2
2015-11-10 2457336.758242 ± 9.8e-05 BJD_TDB Alsubai et al. 2017 -0.1 ± 0.1
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