The Sydney University Molonglo Sky Survey (SUMSS) is a deep radio
survey at 843 MHz of the entire sky south of declination -30°;, made using
the Molonglo Observatory Synthesis Telescope (<a href="https://www.physics.usyd.edu.au/astrop/most/"> MOST </a>), located near Canberra, Australia.
The images from the SUMSS are produced as 4 x 4 degree mosaics of up to
seventeen individual observations, to ensure even sensitivity across
the sky. The mosaics slightly overlap each other. Data were last updated on January 28, 2015.
<p>
Images can also be obtained from the <a href="https://www.astrop.physics.usyd.edu.au/cgi-bin/postage.pl">SUMSS Postage Stamp Server</a>.
<p>
The SUMSS is intended to complement the NRAO-VLA Sky Survey (NVSS) which
covered the sky between +90 and -40 deg declination, at a
frequency of 1400MHz.
<p> Provenance: The SUMSS project team, University of Sydney. This is a service of NASA HEASARC.
Sternberg Astronomical Institute Virtual Observatory Project
Description:
The Sloan Digital Sky Survey is a project to survey a 10000 square degree area
on the Northern sky over a 5 year period. A dedicated 2.5m telescope is
specially designed to take wide field (3 degrees in diameter) images using
a 5x6 mosaic of 2048x2048 CCD, in five wavelength bands, operating in drift
scan mode. The total raw data will exceed 40 TB. A processed subset, of
about 1 TB in size, will consist of 1 million spectra, positions and image
parameters for over 100 million objects, plus a mini-image centered on each
object in every color. The data will be made available to the public after
the completion of the survey
Sternberg Astronomical Institute Virtual Observatory Project
Description:
The Sloan Digital Sky Survey is a project to survey a 10000 square degree area
on the Northern sky over a 5 year period. A dedicated 2.5m telescope is
specially designed to take wide field (3 degrees in diameter) images using
a 5x6 mosaic of 2048x2048 CCD, in five wavelength bands, operating in drift
scan mode. The total raw data will exceed 40 TB. A processed subset, of
about 1 TB in size, will consist of 1 million spectra, positions and image
parameters for over 100 million objects, plus a mini-image centered on each
object in every color. The data will be made available to the public after
the completion of the survey
The Extended IRAS Galaxy Atlas (EIGA) is an extension of the original IRAS Galaxy Atlas (IGA) to b = 6.7 deg.. High resolution images at 60 microns and 100 microns have been produced to match the latitude coverage of radio continuum observations obtained as part of the Canadian Galactic Plane Survey (CGPS). Also associated with the EIGA and IGA is the Mid-Infrared Galaxy Atlas (MIGA).
The GALAH survey: Second data release (Buder+, 2018)
Short Name:
galah_dr2
Date:
17 Jun 2006 18:44:05
Publisher:
Sternberg Astronomical Institute Virtual Observatory Project
Description:
</pre><p>GALAH is a large-scale stellar spectroscopic survey project exploring the history of star formation, chemical evolution, stellar migration and minor mergers in the Milky Way. One of the main science goals of GALAH is to use chemical tagging to identify groups of stars that formed at the same place and time, even though they have dispersed throughout the Galaxy, using the similarity of their chemical abundance patterns. Using the HERMES spectrograph at the Anglo-Australian Telescope, we collect high-resolution (R~28,000) spectra for 360 stars simultaneously. These stars are selected simply in magnitude (14>V>12), Galactic latitude (|b|>10) and declination (dec<+10) to maximise our ability to learn about the underlying structure of the Galaxy.
<p>There are 342,682 unique stars in DR2, observed between January 2014 and January 2018. For these stars, we have derived radial velocities, stellar parameters, and the abundances of up to 23 elements per star.
Sternberg Astronomical Institute Virtual Observatory Project
Description:
The Guide Star Catalog II (GSC-II) is an all-sky optical catalog
based on 1" resolution scans of the photographic Sky Survey plates, at two
epochs and three bandpasses, from the Palomar and UK Schmidt telescopes.
This all-sky catalog will ultimately contains positions, proper motions,
classifications, and magnitudes in multiple bandpasses for almost a billion
objects down to approximately Jpg=21, Fpg=20. The GSC-II is currently used
for HST Bright Object Protection, and will replace GSC-I for HST pointing in
cycle 15. Looking ahead, the GSC-II will form the basis of the Guide Star
Catalog for JWST. This was constructed in collaboration with ground-based
observatories
Sternberg Astronomical Institute Virtual Observatory Project
Description:
The Guide Star Catalog (GSC), which has been constructed to support
the operational need of the Hubble Space Telescope contains nearly 19
million objects brighter than sixteenth magnitude, of which more than
15 million are classified as stars. This catalog provides positions
and magnitudes for these stars.
The original version of this catalog, GSC 1.0, is described in a
series of papers: Lasker et al. (1990AJ.....99.2019L);
Russell et al. (1990AJ.....99.2059R); and
Jenkner et al. (1990AJ.....99.2082J)
The reference material for the GSC 1.2 reduction is the "Positions and
Proper Motions Catalogue":
PPM-North, Roeser S. and Bastian U., 1988
PPM-South, Bastian U. and Roeser S., 1993
PPM-Suppl, Roeser S., Bastian U. and Kuzmin A., 1994
and the Astrographic Catalogue (AC) which was used to remove the mean
systematics common to all the plates.
The overall rms error of the GSC 1.2 is estimated better than 0.3arcsec
The Hawaii-HDF-N is an intensive multi-color imaging survey of 0.2 sq.
degrees centered on the HDF-N. Data were collected on the NOAO 4m Mayall telescope,
the National Astronomical Observatory of Japan 8.2m Subaru telescope and the
University of Hawaii 2.2m telescope.
Deep U, B, V, R, I, and z' data were obtained over the whole field and deep HK' data over
the Chandra Deep Field North. Details are available in the references.
[Adapted from reference website.]
<P>
Two different images are given in the V band (V0201 and V0401) from observations
separated by about a month that had substantial differences in seeing. Provenance: Data downloaded from the reference website. A formatting
error in the FITS files was corrected.. This is a service of NASA HEASARC.