| discov_num | notes | refcode |
| CHR 90 | This is a third component in the eclipsing (Algol-type) and | |
| spectroscopic binary V505 Sgr, P = 1.18d. | ||
| Cvetkovic et al. (2010) derive both short- and long-period solutions | Cve2010b | |
| (29.14 and 94.24y, respectively). The 29y orbit does not agree with | ||
| the light-time effect, so was rejected in favor of the 94y solution. | ||
| Assuming a parallax of 8.40 +/- 0.57 (van Leeuwen 2007, A&A 474, 653), | ||
| this solutuion yields a mass sum of 7.0 +/- 1.4 Msun. |
| refcode | metd | author | reference |
| Cve2010b | orb - | Cvetkovic, Z., Pavlovic, R., & Ninkovic, S. | 2010AJ....140...25C |
| Cve2010b | AJ 140, 25, 2010 | ||
| Tok2019c | St j | Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. | 2019AJ....158...48T |
| Tok2019c | +orb | AJ 158, 48, 2019 |
| idgroup | discov | author |
| 1 | CHR | Center for High Ang. Res. Astronomy (speckle interferometry systems) |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 19531-1436 | CHR 90 | 2006 | 18 | 216 | 0.2 | 9.25 | 6.61 | A0V+F8IV | NOD | 195306.39-143611.1 | |
| 19531-1436 | CHR 90 | 2009 | 19 | 204 | 0.2 | 9.25 | 6.61 | A0V+F8IV | NOD | 195306.39-143611.1 | |
| 19531-1436 | CHR 90 | 2010 | 24 | 200 | 0.3 | 9.25 | 6.61 | A0V+F8IV | NOD | 195306.39-143611.1 | |
| 19531-1436 | CHR 90 | 2015 | 25 | 10 | 0.4 | 9.25 | 6.61 | A0V+F8IV | NO | 195306.39-143611.1 | |
| 19531-1436 | CHR 90 | 2018 | 26 | 186 | 0.4 | 9.25 | 6.61 | A0V+F8IV | NO | 195306.39-143611.1 | |
| 19531-1436 | CHR 90 | 2021 | 27 | 182 | 0.4 | 9.25 | 6.61 | A2V+G5IV | NO | 195306.39-143611.1 |