|
Pair Amorphous or S0_3_ pec PH-7603-S April 3/4, 1979 IIIaJ + GG385 30 min NGC 2968 may form a physical pair with NGC 2964 (Sc; panels 240, 251). The redshifts are v_o(2964) = 1292 km/s and v_o(2968) = 1576 km/s. The angular separation is 6.2'. The projected linear separation would be 53 kpc using a redshift distance of 29 Mpc (H = 50). The chaotic dust pattern silhouetted against the background S0/Am main body shows no rotational organization, similar to the chaos in NGC 4753 on the preceding panel, and probably in NGC 2911, above, as well. Karachentsev 210 [with NGC 2964] Amorphous or S0_3_ pec PH-7603-S April 3/4, 1979 IIIaJ + GG385 30 min NGC 2968 is also illustrated and described in the S0 section on panel 49. It forms a triplet with NGC 2964 (Sc; panels 240, 251) at a separation of 6.3' and with NGC 2970 (S0_3_ not in the RSA) at a separation of 5.0'. The redshifts are v_o(2968) = 1551 km/s, v_o(2970) = 1629 km/s, and v_o(2964) = 1292 km/s. At the mean redshift distance of 30 Mpc (H = 50) the projected linear separation of NGC 2964 from NGC 2968 is 55 kpc and the separation of NGC 2970 from NGC 2968 is 44 kpc. A physical association between NGC 2968 and NGC 2970 is assured by the circumstance that a supernova occurred (SN 1970L, discovered by Wild) on the luminous bridge connecting NGC 2968 and NGC 2970. A photograph of the configuration is in Tammann (1973). The Amorphous classification of NGC 2968 is based on the character of the dust (similar to that in M82 and NGC 3077). NGC 2968 is a small Irregular galaxy included because it is the companion of NGC 2964, 6.3' (33 kpc) away, which was detected. This is one of the few survey galaxies undetected by IRAS. The color indices, B-V, = 1.0 and U-B = 0.65 (RC2) make it the reddest galaxy in our sample. = Kara[72] 210b Non-interacting pair with NGC 2964 at 5.8 arcmin. Non-interacting pair with NGC 2970 at 4.6 arcmin. Description and Physial Data: A.J., 79, 1242, 1974. Photograph: Mem. S.A. Ital., 44, 65, 1973 = Contr. Asiago Obs., No. 284. "Supernovae & SN Remnants", Ap.& Space Sc. Lib., Vol. 45, 215, 1974. SN1970L: The SN was half-way between NGC 2968 and NGC 2970. IAU Circ. No. 2287, 1970. Mem. S.A. Ital., 44, 65, 1973 = Contr. Asiago Obs., No. 284. "Supernovae & SN Remnants", Ap.& Space Sc. Lib., Vol. 45, 215, 1974. I0 (de Vaucouleurs), Ir II (Holmberg) Companion 0.7 south-following, 0.3 x 0.1, diffuse 09 40.6 +32 13 = NGC 2970 = Mark 405 at 5.1, 54, (0.9 x 0.9), E:, m=14.7 Small, bright nucleus with a narrow dark lane. Poorly resolved; possible S pec sp. See also Ap. J., 51, 288, 1920. Non-interacting pair with NGC 2964 at 5.8 arcmin. An irregular oval 1.2' in length; an irregular dark lane passes down its middle at one side of the almost stellar nucleus. No spiral structure discernible. See Abs. Eff. 29 s.n. |