21001+2757
- Unique Name: 21001+2757MLB 618
- RA: 21 00 02.10
- Dec: +27 57 27.1
- Discoverer: MLB
- Discoverer Number: 618
- Components:
- First year: 1929
- Last year: 2007
- Observations: 4
- First position angle: 341
- Last position angle: 340
- First separation: 4.9
- Last separation: 7.2
- Mag first component: 10.1
- Mag second component: 13.2
- Spectral type:
- Primary proper motion RA: -17
- Primary proper motion DEC: -23
- Secondary proper motion RA: -67
- Secondary proper motion DEC: 103
- Durchmusterung:
- Notes:
