04001+2733
- Unique Name: 04001+2733MLB 639
- RA: 04 00 05.00
- Dec: +27 33 18.3
- Discoverer: MLB
- Discoverer Number: 639
- Components:
- First year: 1900
- Last year: 2010
- Observations: 7
- First position angle: 265
- Last position angle: 267
- First separation: 8.6
- Last separation: 8.2
- Mag first component: 8.14
- Mag second component: 9.7
- Spectral type: K5
- Primary proper motion RA: 1
- Primary proper motion DEC: -7
- Secondary proper motion RA: 0
- Secondary proper motion DEC: 0
- Durchmusterung: +27 611
- Notes: