Spectroscopic data of two relatively [O III]-luminous -PNe have been obtained with the 10.4-m Gran Telescopio Canarias. M174 and M2496 are each ˜1 degree from the center of M31 along opposite sides of its minor axis. The ensemble of these two distant PNe plus 16 similarly luminous outer-disk PNe published earlier (Kwitter et al. 2012 & 2013) forms

The Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol) was created by adding polarimetric capability to the BLAST experiment that was flown in 2003, 2005, and 2006. BLASTPol inherited BLAST's 1.8 m primary and its Herschel/SPIRE heritage focal plane that allows simultaneous observation at 250, 350, and 500 μm. We flew

Asymmetric Planetary Nebulae (APN) are formed by bipolar outflows through various mechanism like fast rotation (Blackman et al. 2001), magnetic field (Regos & Tout 1995) or binarity (Harpaz & Soker 1994; Soker 1996; Livio & Soker 2002). The binary scenario seems currently to be best supported by observations as the most efficient in producing the

It is found that the planetary nebula M1-32, which has a [WC4-5] core, shows a peculiar kinematics with bipolar outflows reaching ±200 km/s, while the main body is expanding radially with velocity of 15 km/s (Akras & Lopez 2012 , MNRAS, 425,2197; Rechy-García etal in preparation). Medina et al. (2006, RMAA, 42, 53 74) found high velocity wings in

We present internal proper motion measurements of more than five hundred positions of NGC 2392, based on images acquired with the WFPC2 on bord of the Hubble Space Telescope for two epochs separated by 8.805 yr. We measured the amount of motion of local structures in the nebula determining their relative shift during that interval. We compared two

The horizontal-branch (HB) morphology of globular clusters (GCs) is mainly determined by metallicity. However, the fact that GCs with almost the same metallicity exhibit different HB morphologies demonstrates that at least one more parameter is needed to explain the HB morphology. It has been suggested that one of these should be a global parameter