Gliese 21

Summary

Gliese 21 is a high proper-motion star^[1].

Key Facts

• Gliese 21's instance of is recorded as high proper-motion star^[2].
• Gliese 21's instance of is recorded as near-infrared source^[3].
• Gliese 21's constellation is recorded as Cepheus^[4].
• Gliese 21's spectral class is recorded as M0.5^[5].
• Gliese 21's child astronomical body is recorded as GJ 21 b^[6].
• Gliese 21's catalog code is recorded as LTT 17100^[7].
• Gliese 21's catalog code is recorded as ASCC 1590^[8].
• Gliese 21's catalog code is recorded as GJ 21^[9].
• Gliese 21's catalog code is recorded as GSC 04299-01728^[10].
• Gliese 21's catalog code is recorded as HIC 2120^[11].
• Gliese 21's catalog code is recorded as HIP 2120^[12].
• Gliese 21's catalog code is recorded as LSPM J0026+7008^[13].
• Gliese 21's catalog code is recorded as 2MASS J00265268+7008326^[14].
• Gliese 21's catalog code is recorded as NLTT 1403^[15].
• Gliese 21's catalog code is recorded as PLX 70.0^[16].
• Gliese 21's catalog code is recorded as UCAC4 801-001162^[17].
• Gliese 21's catalog code is recorded as PLX 70.01^[18].
• Gliese 21's catalog code is recorded as AC +69 173^[19].
• Gliese 21's catalog code is recorded as PM J00268+7008^[20].
• Gliese 21's catalog code is recorded as Gaia DR1 530158015555928064^[21].
• Gliese 21's catalog code is recorded as Gaia DR2 530158019855216896^[22].
• Gliese 21's catalog code is recorded as Gaia DR3 530158019855216896^[23].
• Gliese 21's catalog code is recorded as TIC 407210683^[24].
• Gliese 21's catalog code is recorded as TYC 4299-1728-1^[25].
• Gliese 21's catalog code is recorded as UBV M 42917^[26].

Body

Designation and Status

Recorded instance of include high proper-motion star^[2] and near-infrared source^[3].

History and Context

Catalog codes include LTT 17100^[7], ASCC 1590^[8], GJ 21^[9], GSC 04299-01728^[10], HIC 2120^[11], and HIP 2120^[12].