Those who use Pan-STARRS data might bemoan the lack of a "u" band. There is a quick fix, of sorts -- the POSSI-O band which is centered on 4050A. While not...

Doing final tidy-ups for the final time -- yeah, right. Move a few, de-dup a few, then I find this: Q 2112.8+0594, a quasar catalogued in VCV13 onto an...

In the April 2013 release of the Million Quasars catalogue v3.3, I removed 144 "quasars" which I had sourced from the classic VCV13 quasar...

The Million Quasars (MILLIQUAS) catalogue v3.5 is out, inclusive of all publications to 10 August 2013 including SDSS-DR10. It presents 1,302,716 objects...

A new A&A paper, arXiv:1203.7132, "The distance to NGC 1316 (Fornax A): yet another curious case" uses "surface brightness fluctuations" (this is shear,...

My publications are coming to an end, methinks, but throughout I was using a homegrown version of an all-sky optical catalogue, the likes of which seem...

I've done some more cleanups of the VCV13 (2010,A&A,518,10) quasar catalog. These are different to those I published in 2013,PASA,30,4 as those were for...

An unpublished catalog of 1,067,648 quasars is available from quasars.org, It is 19 Mb zipped. The presentation is very simple, and just gives J2000...

My thanks to respondents on the previous space elevator thread. I think I see the most efficient way of building a really good space elevator, presuming...

I can't seem to find a definitive distinction between a galaxy with a type-II narrow-line AGN core and a so-called NELG ("narrow emission-line galaxy"). NELGs...

On Mon, 21 May 2007, George Dishman wrote: "Eric Flesch" wrote in message I think "dark matter" is an...

`On Wed, 16 May 07, Kent Paul Dolan wrote: This will make it a little harder to disprove dark matter, I think "dark matter" is an...

The Million Quasars (Milliquas) catalogue presents a new release, v5.2, which includes just-published SDSS-DR14 and SDSS-DR14Q data. The count of type-I...

I have decided to take two hours away from dead island and do something equally productive with my time: test the numerology of Robert Oldershaw. Exhibit...

On May 23, 9:47 am, "Robert L. Oldershaw" wrote: The recent discovery of an estimated 400 billion unbound planetary-mass...

The following contains TeX code written within .. tags. I'm new to this group and don't know the conventions used in communicating math here. If this group...

Can someone please tell me where I can obtain a copy of the night sky for January 21, 1959? Please respond to ASAP. Thank you for your...

------------------------------------------------------------ Microsoft Research Cambridge Call for proposals Computational tools for advancing...

Suppose I have an area which is a circle with center (ra,dec) and radius of 2 arcsec, I want to know how much fraction of this area is scaned by SDSS, is there...

Does strong gravity actually bend light, or the space through which the light passes? I don't see why a massless particle like a photon would be affected...