Temperature
5180 K
5023 to 5329
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Stellar HostProfile
Kepler-1822
Unclassified star • 897.6 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 169177842
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Q1-Q12 KOI Table • System source: TICv8
Mass
0.76 Msun
0.72 to 0.92
Radius
0.69 Rsun
0.52 to 0.84
Distance
897.6 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.69 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1822
0.69 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1822 b
Transit
◌
Discovery
2021
Period
22.13 days
Radius
2.65 R⊕
Mass
—
Eq. Temp
—
Kepler-1822 b: A Neptune-Like World Orbiting a Cooler, Smaller Star
Kepler-1822 is a star located 2930 light-years from Earth. It has a reported mass of 0.759 solar masses, a radius of 0.692 solar radii, and a temperature of 5180 K. Each of these measurements is smaller than the corresponding value for the Sun. One planet orbits this host: Kepler-1822 b.
Kepler-1822 b was discovered in 2021 by the transit method, which detects the small dip in a star's brightness when a planet passes in front of it. Repeated dips help establish the planet's orbital period, which is 22.1 days. Its radius is 2.65 Earth radii, making it larger than Earth. With a radius between 2.5 and 4 times Earth's, the planet falls into the Neptune-like size class, which describes its radius rather than its composition.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5329 | 0.92 | 0.84 | — | -0.29 | — | 897.6 | TICv8 | TICv8 |
| 5180 | 0.76 | 0.69 | — | — | — | 897.6 | Q1-Q16 KOI Table | TICv8 |
| — | — | — | — | — | — | 897.6 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5023 | — | 0.63 | — | — | — | 897.6 | Q1-Q6 KOI Table | TICv8 |
| 5023 | 0.72 | 0.63 | — | — | — | 897.6 | Batalha et al. 2013 | TICv8 |
| 5196 | 0.82 | 0.72 | 0.80 | — | — | 897.6 | Q1-Q8 KOI Table | TICv8 |
| 5180 | 0.76 | 0.69 | — | — | — | 897.6 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5023 | — | 0.52 | — | — | — | 897.6 | Latham et al. 2005 | TICv8 |
| 5165 | 0.78 | 0.70 | — | — | — | 897.6 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5180 | 0.76 | 0.69 | — | — | — | 897.6 | Q1-Q12 KOI Table | TICv8 |