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Table 1
New spectral types for members of Stephenson 2.
| ID | Co-ordinates (J2000) | i | J a | H | K S | Spectral | Spectral | v LSR | vLSR D07 | |||||
| RA | Dec | type (CO)b | type | (km s-1) | (km s-1) | |||||||||
|
|
||||||||||||||
| D2 | 18 39 19.6 | −06 00 40.8 | 12.66 | 6.90 | 5.05 | 4.18 | M3 I | M7.5 I | +121 | +111 | ||||
| D6 | 18 39 18.4 | −06 00 38.4 | 12.65 | 7.72 | 5.92 | 5.06 | M5 I | M3.5 Iab | +108 | +107 | ||||
| D15 | 18 39 22.4 | −06 01 50.1 | 13.07 | 8.13 | 6.35 | 5.51 | M2 I | M1.5 Iab | +106 | +112 | ||||
| D18 | 18 39 22.5 | −06 00 08.4 | 12.88 | 8.18 | 6.45 | 5.63 | M4 I | M0.5 Iab | +114 | +111 | ||||
| D19 | 18 39 19.5 | −05 59 19.4 | 13.01 | 8.28 | 6.58 | 5.80 | M2 I | M1 Iab | +111 | +107 | ||||
Notes. .
(b)
Estimated from the strength of the CO 2.3 μm bandhead by D07
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