| discov_num | notes | refcode |
| DAY 1 | 2MASS J0030-3739 + 2MASS J0030-3740. Dwarf / white dwarf binary. | |
| Spectral types M9+/-1 + DA, Teff 2000-2400 + 7600+/-175K, masses | ||
| 0.07-0.08 + 0.48-0.65 Msun. Minimum age of the system > 1.94 Gyr. | Day2008 |
| refcode | metd | author | reference |
| Day2008 | E2 w | Day-Jones, A.C., Pinfield, D.J., Napiwotzki, R., Burningham, B., Jenkins, J.S., | 2008MNRAS.388..838D |
| Day2008 | +Ed | Jones, H.R.A., Folkes, S.L., Weights, D.J., & Clarke, J.R.A. | |
| Day2008 | +Pu | MNRAS 388, 838, 2008 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 00301-3740 | DAY 1 | 1999 | 1 | 132 | 89.1 | 15.20 | 16.10 | 9 + DA | N DK | 003006.25-373948.3 | |
| 00301-3740 | DAY 1 | 2010 | 3 | 132 | 89.1 | 15.20 | 16.10 | M9+DA | N K | 003006.25-373948.3 | |
| 00301-3740 | DAY 1 | 2015 | 4 | 132 | 89.1 | 15.20 | 16.10 | M9+DA | N K | 003006.25-373948.3 | |
| 00301-3740 | DAY 1 | 2016 | 7 | 132 | 89.1 | 15.20 | 16.10 | M9+DA | N K | 003006.25-373948.3 |