| J. C. Watson|
3.2658 AU (488.56 Gm)
2 September 1877
| 2 September 1877|
138.61 yr (50629 d)
2.4572 AU (367.59 Gm)
James Craig Watson
| 188 Menippe, 132 Aethra, 161 Athor, 196 Philomela, 193 Ambrosia|174 Phaedra Wikipedia
174 Phaedra is a sizable, rocky main belt asteroid that was discovered by Canadian-American astronomer James Craig Watson on September 2, 1877, and named after Phaedra, the tragic lovelorn queen in Greek mythology.
Lightcurve data obtained from Phaedra indicates a rather irregular or elongated body.
Photometric observations of this asteroid at the Shadowbox Observatory in Carmel, Indiana, during 2009 gave a light curve with a period of 4.96 ± 0.01 hours. This is consistent with previous studies in 1977, 1988, and 2008.