We present colour transformations for the conversion of the W1 and W2 magnitudes of the Wide-field Infrared Survey Explorer (WISE) photometric system to the...

1005 objects selected from the IPHAS survey catalogue. Of these 721 are new PN candidates while 224 are known objects. Also listed is the information for...

We have learnt in the last decades that the majority of galaxies belong to high density regions interconnected in a sponge-like fashion. This large-scale...

Hα plus [NII] and R-band CCD photometry and derived parameters are presented for the full sample of 334 spiral and irregular galaxies. Galaxy distances are...

We carried out CCD observations on 39 nights from September, 1999 to February, 2003. Standard Johnson R filtered and unfiltered data were obtained, using the 60...

R-band photometric and isophotal parameters for 171 late-type dwarf galaxies. For each galaxy the date of observation, seeing, adopted distance, equatorial...

CCD UBV photometry of 2279 stars in Sextans A is presented. Differences with the photometric scales of Sandage and Carlson (1985AJ.....90.1019S) and Hoessel et...

We present a study of the host bulge properties and their relations with the black hole mass for a sample of 10 intermediate-type active galactic nuclei (AGNs)...

Aims: The Planck catalogues of Sunyaev -Zeldovich (SZ) sources, PSZ1 and PSZ2, are the largest catalogues of galaxy clusters selected through their SZ signature...