Hello, I need to find a list of IR sources from images complete to at least the 16 th magnitude in the K_s (2.15 micrometer) passband. I also need their J...

The MILLIQUAS (Million Quasars) catalogue v2.7 is out, it contains all quasars and 70% photometric quasars published to 4 November 2011. USNO-B optical...

This last posting (in the series of 5) shows 5 mystery objects and also 5 tidy-ups of objects not covered in the previous postings. Section A: Mysteries. ...

Recently I asked for recommendations about where one should publish. I want to expand that discussion somewhat. What I DO NOT want to do in this post: ...

Note: Readers should consider whether replies to this post should be submitted as a post or sent to me via email; try to guess which is...

IV. ** far-flungers -- misc moves over 10 arcmin ** So you look up a brightish quasar on DSS or SDSS-DR8 finding charts but are greeted by empty sky. What...

This is part 2 of anomalies I've encountered in cleaning QSO data. 99 44/100 % is fine. This is the story of the remaining 0.56%. The task in producing...

Following are a list of 21 duplicates found in the Veron catalog. Where these objects also appear in NED, I add the NED name. May I preface by saying that the...

I feel strongly that there are serious problems concerning the pricing of academic journals and the amount of research money which goes into their...

I was bemused to see a recent paper, 2011A&A.,529,99, Cupani G. et al, "When two become one: an apparent QSO pair turns out to be a single quasar". The...

Here is something potentially interesting. Discrete Scale Relativity says that stellar masses should have preferred peaks at: 0.145 solar masses, and roughly...

I would like to demonstrate how a 'theory of principle' can make definitive predictions even in the present era when the questions we are asking are amazingly...

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...

As promised, I read the paper on holiday. Here are some comments. The second line in the abstract is wrong. This is the famous Press & Gunn result for...

Before reliable data was available, most astrophysicists expected the substellar mass function to keep rising towards lower masses, as it had in the lower part...

Looks like the Baptistina asteroid family wasn't responsible for the dinosaurs'...

Rather bad news today at arxiv.org for string/brane notions, loop quantum gravity, and other major quantum gravity theories. See: arXiv:1108.6005v1...

I just saw today's image of the strange tail of 'asteroid' P/2010 A2 on the APOD website at http://antwrp.gsfc.nasa.gov/apod/astropix.html If, as many...

In the latest issue of Science 8/26/11 there is a report by Bailes et al describing the discovery and properties of a new pulsar-planet system, the third so...

All the studies listed below can be downloaded from:- http://www.martin-nicholson.info/datamining2011/garden0.htm Paper 1 - Identifying and characterising red...