exoclock

Qatar-7b

Discovered by: Alsubai et al. 2019

The Star
Simbad
GAIA
2MASS
Qatar 7
DR2 2878923523472328704
J23540364+3701185
RA 23:54:03.6389 DEC +37:01:18.584
Parallax
1.388 mas
P.M. RA
-5.189 mas/y
P.M. DEC
-1.129 mas/y
MagV
13.03
MagR
13.02
MagI
12.878
MagJ
11.859
MagH
11.599
MagK
11.561
MagG
12.927
MagGBP
13.267
MagGRP
12.43
* calculated from GAIA magnitudes

Ephemeris - Not verified False
Alsubai et al. 2019
Mid-time
2458043.32075 ± 0.00016 BJDTDB
Period
2.032046 ± 9.7e-06 days

Transit Parameters
Alsubai et al. 2019
Rp/Rs
0.11 ± 0.001
a/Rs
4.84 +0.05 -0.05
i
89.0 +1.0 -1.0 deg
e
-
ω
- deg
DepthR*
15.92 mmag
Duration*
3.58 hours
* calculated from the other parameters, using PyLightcurve

Limb Darkening Parameters
Alsubai et al. 2019
Teff
6387.0 +38.0 -38.0 K
Log(g)
4.2 +0.03 -0.03 cm/s2
Fe/H
0.276 +0.071 -0.071 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
LOW
7 (7)
-24.2±0.5
0

Qatar-7b


ExoClock Observations

Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2021-12-18
Melun
C14
H694 / Astrodon ExoPlanet-BB / 60.0
-21.8 ± 1.9
2021-12-18
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0
-25.0 ± 1.6
2021-12-16
Claudio Lopresti
Meade LX200 12"
CCD Sbig ST9xe / Lum / 180.0
-23.3 ± 4.3
2021-12-16
La Montjoie
Celestron CGX C8 XLT
Camera CMOS ZWO ASI294MC pro (color) / Clear / 240.0
-24.8 ± 5.8
2021-12-16
Hypatia Observatory
Ritchey Chretienne 250mm f/5.3
Sbig ST8-XE / R / 250.0
-27.7 ± 4.3
2021-12-02
NTHU Observatory
Showa 250mm Refractor
ASI 6200MM Pro / Lum / 60.0
-24.9 ± 2.7
2021-11-26
Deokheung Optical Astronomy Observatory
NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 120.0
-24.3 ± 0.6
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