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| Query : 1991Ap&SS.186..277K |
1991Ap&SS.186..277K - Astrophys. Space Sci., 186, 277 (1991)
The ratio of optical to near-infrared emission line strengths in SII as electron density diagnostics for planetary nebulae.
KEENAN F.P.
Journal keyword(s):
Simbad objects: 4
| Number of rows : 4 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | IC 418 | PN | 05 27 28.2059533560 | -12 41 50.282287764 | 9.405 | 9.010 | 10.118 | O7fp | 1059 | 2 | ||
| 2 | HD 184738 | PN | 19 34 45.2337620448 | +30 30 58.950651240 | 10.41 | 10.44 | [WC9] | 976 | 0 | |||
| 3 | IC 4997 | PN | 20 20 08.7557973960 | +16 43 53.698933380 | 11.94 | 11.15 | [WC7/8] | 555 | 0 | |||
| 4 | NGC 7027 | PN | 21 07 01.571952 | +42 14 10.47120 | 10.358 | 8.831 | 10.157 | ~ | 2541 | 1 |
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