... TNG . ... FIRST LIGHT OF ARNICA . ... The ARcetri INfrared CAmera ( ARNICA ) has been installed in the week 6-13 December 1998 at the TNG Nasmyth A focus (see Figure 1.) The interface is meant to support the optical imager ( OIG ), the infrared camera (ARNICA will be later substituted by NICS ), and the adaptive optics module ( ADOPT@TNG ). ... Arnica is a DRO camera for infrared imaging operating in wavelength range between 0.9 and 2.6 microns and is equipped with a Nicmos3 256x256 detector. ...

... EXPN DNO D A T E UT TIME FQ SOURCE CORR-Telescopes VT734 355-MO Dec 21 08:00-21:00 C TAU-A Pointing VT735 356-TU Dec 22 08:00-21:00 C TAU-A Pointing VT736 358-TH Dec 24 09:00-20:00 K ORIONKL Pointing VT737 359-FR Dec 25 09:00-20:00 K ORIONKL Pointing VT738 360-SA Dec 26 09:00-20:00 C 0528+134 Mitk-UD KA SH W018c 364-WE Dec 30 06:00-15:00 L 0552+398 Socr-VLBA W071n 6-WE Jan 06 10:00-17:00 L J0745+10 Mitk-AT HO MP UD SH KA W059e 7-TH ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

... About ATMoB . ... The Observing Committee is starting an Observing Awards Program to promote observing among the membership of the Amateur Telescope Makers of Boston. ... Participant must be a current member of the Amateur Telescope Makers of Boston . ... To qualify for your Observing Award Certificate, turn in your worksheet and drawings to an ATMoB Observing Committee member or observing@atmob.org . ... This Excel sheet has useful macros. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Public . ... Science Users Information > Science Publications > Science Announcements . ... Public Surveys . ... Published: 24 Feb 2014 . ... The Public ESO Spectroscopic Survey of Transient Objects ( PESSTO ) is one of the two on-going ESO public spectroscopic surveys . ... The first public data release ( DR1 ) of the VIDEO programme via the ESO Science Archive Facility, contained 97 individual (i.e. single-OB) tile images in the VIDEO-XMM3 field and their associated single-band source lists. ...

... 2008 December 8 . The Dark Doodad Nebula . ... When observing the great globular cluster NGC 4372, observers frequently take note of a strange dark streak nearly three degrees in length running near it. ... Pictured above in a rich and colorful star-field , the Dark Doodad Nebula can be found sweeping across the image center. The globular star cluster NGC 4372 is visible on the image left, while the bright star gamma Musca is seen to the cluster's right. ... About APOD | ...

... Comet 67P is the target of the Rosetta mission. Image obtained using the Faulkes Telescope North at Haleakala, operated by Las Cumbres Observatory. ... Messier 41 (M41) is an open cluster of stars. 3 colour images obtained using 1 meter telescope at Siding Spring, operated by Las Cumbres Observatory. The Beehive Cluster (M44) is an open cluster of stars. 3 colour images obtained using 1 meter telescope at Siding Spring, operated by Las Cumbres Observatory. ...

... We will consider the rms, (K), for observations with a receiver of system temperature, T , frequency resolution, per polarization, and total integration time per observing cycle, . ... For ``in-band'' frequency switching, the line under investigation is always in the observing band. ... Position Switching or ``Out-of-Band'' Frequency Switching: Here the line is only observed for one half of the time, with noise being present all of the time. ...

... IRTF: Scanning the Infrared Skies . ... Above, NASA's Infrared Telescope Facility (IRTF) poses in front of a starry background. ... This 3-meter telescope was established in 1979 and spends about half its time observing Solar System objects. The Pleiades Star Cluster . ... Sirius: The Brightest Star in the Night . ... As Sirius is 8.7 light years distant, it is not the closest star system -- the Alpha Centauri system holds this distinction. ... Galileo Demonstrates the Telescope . ...