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iot Dra Overview

iot Dra 12.57 R⦿ 4548.00 K
iot Dra b
iot Dra c

iot Dra Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
iot Dra
iot Dra b 510.85 d > 3756.73 M⨁ Radial Velocity 2002 Frink et al. 2002 Confirmed Planet
iot Dra c 25000 d > 4958.12 M⨁ Radial Velocity 2021 Hill et al. 2021 Confirmed Planet
iot Dra
  • Some stellar parameter values may be biased due to companion blend (WDS Catalog)
RA
15h24m55.76s
Dec
+58d57m58.11s
Distance
31.328320±0.500546 pc
Parallax
31.92±0.51 mas
Ecliptic Latitude
71.09357 deg
Ecliptic Longitude
184.94562 deg
Galactic Latitude
48.62777 deg
Galactic Longitude
93.97119 deg
Total Proper Motion
18.1121506±0.7810250 mas/yr
Proper Motion (RA)
-8.1±0.7 mas/yr
Proper Motion (Dec)
16.2±0.8 mas/yr
Photometry
mV
3.29668±0.02300
mTESS
2.2711±1.4762
mJ
1.293±0.220
mH
0.724±0.146
mKs
0.671±0.200
mW1
-1.54
mW2
-0.467
mW3
0.740±0.045
mW4
0.624±0.009
mGaia
2.9682800±0.0051606
mB
4.467±0.016
Abundances
(Hypatia Catalog)
[Fe/H] 0.16±0.21 dex
[C/H] -0.01±0.24 dex
[O/H] 0.23±0.26 dex
[Na/H] 0.34±0.26 dex
[Mg/H] 0.20±0.18 dex
[Al/H] 0.37±0.24 dex
[Si/H] 0.37±0.18 dex
[Ca/H] 0.04±0.26 dex
[Y/H] 0.00±0.08 dex
[BaII/H] -0.09±0.22 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Hill et al. 2021 TICv8 Gaia DR2 Maldonado et al. 2015 Mortier et al. 2013 Kane et al. 2010 Butler et al. 2006 Gray et al. 2003 Santos et al. 2003 Frink et al. 2002 Garrison & Beattie 1998 Cannon & Pickering 1918
Teff
(K)
4504±62 4534.07000±6.13359
4642.0+1149.5-702.0
 4628±33 4528±111 --- 4548 --- 4750 4530±100 --- ---
M✶
(M⦿)
1.54±0.09 --- --- --- 1.14±0.16 1.05 1.05 --- --- 1.05 --- ---
Metallicity
(dex)
0.030±0.080 [Fe/H] 0.08920060±0.02754610 [M/H] --- 0.22±0.05 [Fe/H] -0.16±0.06 [Fe/H] --- --- --- 0.09 [Fe/H] 0.29±0.2 [Fe/H] --- ---
log g
(log10(cm/s2))
2.48±0.01 --- --- 2.74±0.12 2.49±0.26 --- --- --- 3.15 2.60±0.25 --- ---
L✶
(log10(L⦿))
1.722+0.017-0.018
 ---
1.82010+0.00478-0.00483
 --- --- --- --- --- --- --- --- ---
γ
(km/s)
--- --- -12.313011134097826±0.982286246920369 --- --- --- --- --- --- --- --- ---
R✶
(R⦿)
11.79±0.24 ---
12.568771+4.877820-4.494170
 --- --- 12.88 --- --- --- --- --- ---
Sp. T
K2 III --- --- --- --- --- --- K2 III --- --- K2 III K0
Age
(Gyr)
2.65±0.74 --- --- --- --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Hill et al. 2021 Kane et al. 2010 Butler et al. 2006 Frink et al. 2002
Tp
(days)
2455590.17±0.13
(JD)
2452015.36±0.16
(JD)
2452014.59±0.30 2452015.8±0.2
ω
(deg)
89.90±0.30 92.5±0.7 91.58±0.81 95.9±0.1
Mp sin i
(M⨁)
3757+133-130
 2765 2803.1±228.8 2828.6
Mp sin i
(MJup)
11.82+0.42-0.41
 8.7 8.82±0.72 8.9
e
0.7010+0.0016-0.0017
 0.713±0.008 0.7124±0.0039 0.70±0.01
P
(days)
510.8544±0.0128 510.72±0.07 511.098±0.089 536±5
K
(m/s)
--- 306.0±3.8 307.6±2.3 301.0
a
(au)
1.453±0.026 1.27 1.275±0.074 1.3
i
(deg)
46+27-19
 --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Hill et al. 2021
Tp
(days)
2476000+22000-13000
(JD)
ω
(deg)
62.0+262.0-32.0
Mp sin i
(M⨁)
4958+4450-1621
Mp sin i
(MJup)
15.6+14.0-5.1
e
0.455+0.120-0.084
i
(deg)
86.0±19.0
P
(days)
25000+22000-13000
a
(au)
19.4+10.0-7.7
Print
Literature Time Series (2 File Types, 3 Files)
File Type Data Points Filter Reference
Photometric Light Curve     134 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Radial Velocity Curve     119 Optical Spectra Butler et al. 2006
Radial Velocity Curve     56 Optical Spectra Frink et al. 2002
Known Objects
2 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
2 Associated Literature Data
  • System
  • Star
  • Confirmed
  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
  • External Link
  • Search
  • Browse
  • Download
https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/4/iot_Dra.json

iot Dra

Catalog Parameters

RA
ra
15h24m55.76s
Dec
dec
+58d57m58.11s
β
elat
71.09357
λ
elon
184.94562
b
glat
48.62777
l
glon
93.97119
mV
sy_vmag
3.29668±0.02300
mTESS
sy_tmag
2.2711±1.4762
mJ
sy_jmag
1.293±0.220
mH
sy_hmag
0.724±0.146
mKs
sy_kmag
0.671±0.200
sy_kepmag
no_data
mW1
sy_w1mag
-1.54
mW2
sy_w2mag
-0.467
mW3
sy_w3mag
0.740±0.045
mW4
sy_w4mag
0.624±0.009
sy_icmag
no_data
mGaia
sy_gaiamag
2.9682800±0.0051606
mB
sy_bmag
4.467±0.016
sy_gmag
no_data
sy_imag
no_data
sy_rmag
no_data
sy_umag
no_data
sy_zmag
no_data
μ
sy_pm
18.1121506±0.7810250
μδ
sy_pmdec
16.2±0.8
μα
sy_pmra
-8.1±0.7
π
sy_plx
31.92±0.51
Distance
sy_dist
31.328320±0.500546

Set Parameters

R✶
st_rad
12.568771+4.877820-4.494170
Teff
st_teff
4548
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