21435+2721
- Unique Name: 21435+2721A 299DE
- RA: 21 43 57.12
- Dec: +27 23 23.9
- Discoverer: A
- Discoverer Number: 299
- Components: DE
- First year: 1875
- Last year: 2001
- Observations: 4
- First position angle: 97
- Last position angle: 95
- First separation: 999.9
- Last separation: 999.9
- Mag first component: 10.19
- Mag second component: 9.2
- Spectral type: F6
- Primary proper motion RA: -241
- Primary proper motion DEC: -161
- Secondary proper motion RA: 2
- Secondary proper motion DEC: -3
- Durchmusterung:
- Notes: N
