exoclock

Qatar-3b

Discovered by: Alsubai et al. 2017

The Star
Simbad
GAIA
2MASS		 Qatar 3
DR2 2878641361300809856
J23563647+3612466
RA 23:56:36.4831 DEC +36:12:46.773
Parallax
1.332 mas		 P.M. RA
-7.763 mas/y		 P.M. DEC
-8.484 mas/y
MagV
12.88		 MagR
12.89		 MagI*
12.112		 MagJ
11.601		 MagH
11.272		 MagK
11.219
MagG
12.82		 MagGBP
13.122		 MagGRP
12.233
*Calculated from GAIA magnitudes.

Ephemeris - Not verified False
Mallonn et al. 2019
Mid-time
2457312.48458 ± 0.0001 BJDTDB
Period
2.507895 ± 3e-06 days
Transit Parameters
Alsubai et al. 2017
Rp/Rs
0.0888 ± 0.0018		 a/Rs
6.4 +0.6 -0.6
 i
86.8 +2.0 -2.0 deg
e
-		 ω
- deg
DepthR*
10.12 mmag		 Duration*
3.1 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
6007.0 +52.0 -52.0 K
 Log(g)
4.29 +0.08 -0.08 cm/s2
 Fe/H
-0.04 +0.08 -0.08 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		LOW
5 (3)

0

5.2±0.7

Qatar-3b


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2021-10-21 Adrian Jones
Private Observatory (I64)		 Meade ACF 30cm
QSI 583 / R / 200.0		 5.3 ± 2.9
2021-10-16 Yves Jongen
Rasteau Observatory		 Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		 8.6 ± 1.4
2021-09-21 Dim Stouraitis
Galilaios		 SCT
SXVF-H9 Starlight-Xpress / R / 120.0		 7.4 ± 7.2
2020-11-09 Manfred Raetz
privat observatory Herges-Hallenberg		 SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		 3.6 ± 1.0
2016-12-23 Anaël Wünsche
Observatoire des Baronnies Provençales		 CDK Planewave
SBIG STL11K / Clear / 120.0		 4.0 ± 2.3
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