20587+3644
- Unique Name: 20587+3644ES 251
- RA: 20 58 48.63
- Dec: +36 44 03.4
- Discoverer: ES
- Discoverer Number: 251
- Components:
- First year: 1896
- Last year: 2002
- Observations: 10
- First position angle: 141
- Last position angle: 141
- First separation: 6.8
- Last separation: 6.6
- Mag first component: 10.01
- Mag second component: 11.02
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -2
- Secondary proper motion RA: 3
- Secondary proper motion DEC: 0
- Durchmusterung: +36 4352
- Notes: