21218+3528
- Unique Name: 21218+3528TDT2923
- RA: 21 21 46.92
- Dec: +35 27 58.2
- Discoverer: TDT
- Discoverer Number: 2923
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 79
- Last position angle: 79
- First separation: 1.4
- Last separation: 1.4
- Mag first component: 11.51
- Mag second component: 12.74
- Spectral type:
- Primary proper motion RA: -4
- Primary proper motion DEC: -9
- Secondary proper motion RA: -4
- Secondary proper motion DEC: -9
- Durchmusterung:
- Notes: