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HD 27894 Overview

  • Star: HD 27894
    • Stellar Radius: 0.85 Solar Radius
    • Stellar Effective Temperature: 4875.00 K
    • Planet: HD 27894 b
      • Disposition Confirmed
    • Planet: HD 27894 c
      • Disposition Confirmed
    • Planet: HD 27894 d
      • Disposition Confirmed

HD 27894 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HD 27894
HD 27894 b 18.02 d > 196.74 M⨁ Radial Velocity 2005 Moutou et al. 2005 Confirmed Planet
HD 27894 c 36.07 d > 51.49 M⨁ Radial Velocity 2017 Trifonov et al. 2017 Confirmed Planet
HD 27894 d 5019.54 d 2063.66 M⨁ Radial Velocity 2017 Trifonov et al. 2017 Confirmed Planet
HD 27894
RA
04h20m47.42s
Dec
-59d24m34.84s
Distance
43.8214+0.0593-0.0591
pc
Parallax
22.7910000±0.0306041 mas
Ecliptic Latitude
-76.79263 deg
Ecliptic Longitude
20.87252 deg
Galactic Latitude
-42.00943 deg
Galactic Longitude
270.09987 deg
Total Proper Motion
325.7145651±0.0763298 mas/yr
Proper Motion (RA)
182.3130000±0.0532681 mas/yr
Proper Motion (Dec)
269.9110000±0.0847928 mas/yr
Photometry
mV 9.36±0.03
mTESS 8.4643±0.0060
mJ 7.639±0.019
mH 7.174±0.027
mKs 7.071±0.026
mW1 ---
mW2 ---
mW3 ---
mW4 ---
mGaia 9.065730±0.000244
mB 10.313±0.022
Abundances
(Hypatia Catalog)
[Fe/H] 0.31±0.16 dex
[C/H] 0.32±0.08 dex
[O/H] 0.22±0.09 dex
[Na/H] 0.36±0.14 dex
[Mg/H] 0.31±0.16 dex
[Al/H] 0.42±0.10 dex
[Si/H] 0.28±0.08 dex
[Ca/H] 0.35±0.14 dex
[BaII/H] 0.31±0.02 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source An et al. 2025 An et al. 2025 Feng et al. 2022 TICv8 Gaia DR2 Trifonov et al. 2017 Suárez-Andrés et al. 2016 Kürster et al. 2015 Tsantaki et al. 2014 Ghezzi et al. 2010 Sousa et al. 2008 Moutou et al. 2005 Michigan Catalog, Vol. 1 Cannon & Pickering 1918
M✶
(M⦿)
0.873±0.039
0.871+0.040-0.039
 0.810±0.096
0.8100000+0.1133100-0.0793599
 --- 0.8 --- --- --- 0.80±0.10 0.716 0.8 --- ---
Teff
(K)
--- --- ---
4912.1700+129.2530-93.4446
4829.940+66.115-39.940
 --- 4833 --- 4894±25 4832±85 4952±105 4875±81 --- ---
L✶
(log10(L⦿))
--- --- ---
-0.4193195+0.0122616-0.0126044
-0.40903563+0.00093258-0.00093456
 --- --- --- --- -0.449±0.069
-0.474+0.041-0.045
 -0.449 --- ---
Metallicity
(dex)
--- --- --- 0.3222280±0.0303542 [M/H] --- 0.30±0.07 [Fe/H] 0.070±0.130 [N/H] --- 0.18±0.03 [Fe/H] 0.21±0.03 [Fe/H] 0.20±0.08 [Fe/H] 0.30±0.07 [Fe/H] --- ---
γ
(km/s)
--- --- --- --- 82.69463773429246±0.31753239715226 --- --- 82.90033±0.00057 --- --- --- 82.9023±0.0003 --- ---
v sin i
(km/s)
--- --- --- --- --- --- --- --- 0.87 --- --- <1.5 --- ---
Age
(Gyr)
--- --- --- --- --- --- --- --- --- >13.0±1.0 --- 3.9 --- ---
log g
(log10(cm/s2))
--- --- ---
4.4856600+0.0549279-0.1098310
 --- --- 4.3 --- 4.08±0.09 4.02±0.16 4.39±0.20 4.22±0.26 --- ---
Sp. T
--- --- --- --- --- K2 V --- --- --- --- --- K2 V K2 V K2
R✶
(R⦿)
--- --- ---
0.8520130+0.0460241-0.0558553
0.89176697+0.01493350-0.02392180
 --- --- --- --- 0.85±0.08 --- --- --- ---
Prot
(days)
--- --- --- --- --- 44 --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
--- --- ---
1.8463367+0.4512107-0.4090315
 --- --- --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Astrometry, Radial Velocity
Tools
Planetary Systems
Source Feng et al. 2022 An et al. 2025 Trifonov et al. 2017 Kürster et al. 2015 Moutou et al. 2005
ω
(deg)
156.983+10.739-15.134
 ---
132.2+2.8-15.2
 132±11 132.9±9.7
Mp sin i
(M⨁)
197±16 214±7
211+3-2
 205 197.05
Mp sin i
(MJup)
0.619±0.050 0.674±0.021
0.665+0.009-0.007
 0.645 0.62
e
0.0470+0.0120-0.0110
0.0334+0.0088-0.0091
0.047+0.012-0.008
 0.0486±0.0086 0.049±0.008
P
(days)
18.01939+0.00024-0.00027
 18.01947±0.00019
18.02+0.01-0.02
 17.9904±0.0077 17.991±0.007
K
(m/s)
55.265+0.830-0.644
 ---
59.80+0.80-0.59
 58.13±0.50 58.1±0.5
a
(au)
0.125±0.005
0.1286+0.0019-0.0020
 0.1250±0.0001 0.125 0.122
Tp
(days)
2452934.108+0.539-0.722
(BJD)
--- --- 2452933.64±0.55
(BJD)
2453275.46±0.48
i
(deg)
---
89.0+37.0-39.0
 --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Trifonov et al. 2017
ω
(deg)
44.2+11.0-7.5
Mp sin i
(M⨁)
51.5+3.5-12.7
Mp sin i
(MJup)
0.162+0.011-0.040
e
0.015+0.020-0.002
P
(days)
36.07+0.26-0.09
K
(m/s)
11.57+0.79-2.89
a
(au)
0.198±0.001
Print
Status
Confirmed Planet
Detected By
Astrometry, Radial Velocity
Tools
Planetary Systems
Source Feng et al. 2022 An et al. 2025 Trifonov et al. 2017
Tp
(days)
2447991.499+44.386-40.061
(BJD)
--- ---
ω
(deg)
334.378+4.024-3.713
 ---
353.9+12.3-3.1
Mp
(M⨁)
2064+314-112
2409+191-178
 ---
Mp
(MJup)
6.493+0.987-0.353
7.58+0.60-0.56
 ---
e
0.343+0.031-0.026
0.3239+0.0092-0.0089
0.389+0.087-0.030
i
(deg)
101.524+14.742-31.503
117.8+6.9-11.0
 ---
P
(days)
5019.54244+32.59359-31.12557
 5045.2±18.6
5174+171-82
K
(m/s)
92.016+1.687-1.627
 ---
79.76+2.62-15.03
a
(au)
5.362+0.206-0.223
 5.514±0.084
5.448+0.119-0.058
Mp sin i
(M⨁)
--- ---
1721+76-386
Mp sin i
(MJup)
--- ---
5.415+0.239-1.214
Print
Literature Time Series (2 File Types, 2 Files)
File Type Data Points Filter Reference
Photometric Light Curve     102 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Radial Velocity Curve     20 Optical Spectra Moutou et al. 2005
Known Objects
3 Confirmed Planets
3 2MASS Point Source Catalog
Data Files
3 Associated Literature Data
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  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
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