Electronic Databases & Star Charts Lab Astronomy Worksheet (Page 2 of 4) in pdf

Electronic Databases & Star Charts Lab Astronomy Worksheet Page 2

Using Simbad 4 in the “Query by criteria” mode, generate a list of all known

stars that are very similar to the Sun (i.e. spectral classification G2V) sorted

in order of decreasing brightness.

What is the brightest star on this list? ______________________________

How many stars are on the list? ___________________________________

Using Simbad and then the Aladin Previewer, look at the available POSS

images for the H II region LBN 473 in Cepheus, then answer the following

questions:

Is nebulosity more visible in red light or in blue light? __________________

What is the field size for this image? ______________________________

Using Simbad, find the deep sky (NGC) object located at

and δ

= 22

= -20˚ 50′.

2000

Name of Deep Sky Object ______________________________________

What does it look like? _________________________________________

VizieR

Using the VizieR service, generate an Excel spreadsheet listing the 100

brightest stars (apparent visual magnitude) in the sky, their V magnitudes,

and their equinox and epoch 2000.0 coordinates, in order of right ascension.

Extract your information from the 1991 edition of the Bright Star Catalogue.

Print out your spreadsheet and turn it in with this report.

Astro 344L – Fall 2006

Electronic Databases & Star Charts Lab Astronomy Worksheet Page 2