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HAT-P-21b

Discovered by: Bakos et al. 2011
The Star
Simbad
GAIA
2MASS
HAT-P-21
DR2 770622651659107712
J11250598+4101406
RA 11:25:05.9858 DEC +41:01:40.669
Parallax
3.578 mas
P.M. RA
-1.088 mas/y
P.M. DEC
13.243 mas/y
MagV
11.46
MagR
11.71
MagI*
10.716
MagJ
10.503
MagH
10.154
MagK
10.111
MagG
11.558
MagGBP
11.921
MagGRP
11.059
* calculated from GAIA magnitudes

Ephemeris - Not verified False
Bakos et al. 2011
Mid-time
2454996.4139 ± 0.0007 BJDTDB
Period
4.124481 ± 7e-06 days

Transit Parameters
Bakos et al. 2011
Rp/Rs
0.095 ± 0.0022
a/Rs
9.6 +0.7 -0.7
i
87.2 +0.7 -0.7 deg
e
0.228 +0.016 -0.016
ω
309.0 +3.0 -3.0 deg
DepthR*
11.12 mmag
Duration*
3.71 hours
* calculated from the other parameters, using PyLightcurve

Limb Darkening Parameters
Bakos et al. 2011
Teff
5588.0 +80.0 -80.0 K
Log(g)
4.33 +0.06 -0.06 cm/s2
Fe/H
0.01 +0.08 -0.08 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
ALERT
1 (0)
10.0±2.2
0
HAT-P-21b


ExoClock Observations
Obs. Date O-C (min) Observer
Observatory
Telescope
Camera / Filter / Exp [s]
2020-01-24 10.0 ± 2.2 Nikolaos Paschalis
Nunki Observatory
Officina Stellare RILA 400
SBIG STXL 11002 / R / 90.0
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