... A new class of exoplanet . Two groups discover planets with masses similar to Neptune's, unexpectedly bringing astronomers one step closer to finding Earth-size worlds around other stars. ... A stronomers announced today the first discovery of a new class of extrasolar planets far smaller than any previously detected around a Sun-like star. ... One of the new planets was discovered around a star already known to have three others, making this the first four-planet system identified so far. ...
... For reliable estimation of the accuracy of asteroid CCD observations we usually consider from ten or more various NUMBERED MINOR PLANETS (NMPs) observed during several nigths per month (more then 50 positions). ... They can be considered as an indicator of accuracy of the CCD positional observations with given MPC code. ... For any NUMBERED minor planet the (O-C) values must be zero if the errors of observations and the errors of its theory are absent. ...
... Printed in U.S.A. The Hipparcos and Tycho Photometric System Passbands MICHAEL S. BESSELL Research School of Astronomy and Astrophysics, Institute of Advanced Studies, The Australian National University, Private Bag, Weston Creek P.O., ACT 2611, Australia ; bessell=mso.anu.edu.au Received 2000 March 6 ; accepted 2000 April 17 ABSTRACT. Hipparcos and T ycho magnitudes have been extracted for many of the E-region standard stars. ... B [V regression for the E-region stars. ...
[
Текст
]
Ссылки http://www.mso.anu.edu.au/~bessell/FTP/Hipparcos/bessell_hip_PASP.pdf -- 269.2 Кб -- 22.08.2007 Похожие документы
Data Flow System Document Title: Document Number: Issue: Date: Document Prepared by: Document Approved by: Document Reviewed by: Document Released by: Peter Bunclark & Simon Hodgkin (CASU) Mike Irwin (CASU Manager) William Sutherland (VISTA Project Scientist) Jim Emerson (VDFS Project leader) VISTA Infra Red Camera Calibration Plan VIS-SPE-IOA-20000-0002 1.4 pre 1 2006-11-13 Signature And date: Signature And date: Signature And date: Signature And date: DATA FLOW Calibration Plan SYSTEM VISTA Document:
[
Текст
]
Ссылки http://www.vista.ac.uk/Files/docs/vdfs/Cal-Plan-draft_v1.4.pdf -- 648.5 Кб -- 20.04.2011 Похожие документы
... 5-GHz total flux density . ... VLBApls image at 5 GHz . ... EW position (mas) . ... 0.1 . ... Other VLBI references . 2.3 and/or 8.4 GHz: multiple epoch VLBI images are available in the USNO Radio Reference Frame Image Database (RRFID, Fey & Charlot 2000, ApJS 128, 17) . 15 GHz: VLBI images are available in the USNO Radio Reference Frame Image Database (RRFID, Fey & Charlot 2000, ApJS 128, 17) . 15 GHz: multiple epoch VLBI images are available in the VLBA 2-cm survey (Kellermann et al. ...
... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...
... 337, 275292 (2002) The correlation of line strength with luminosity and redshift from composite quasi-stellar object spectra S. M. Croom,1 K. Rhook,1 E. A. Corbett,1 B. J. Boyle,1 H. Netzer,2 N. S. Loaring,3 L ... We measure highly significant Baldwin effects for most broad emission lines (C IV 1549, C III] 1909, Mg II 2798, H ,H ) and show that they are predominantly caused by correlations with luminosity, not redshift. ... The correlations of log W with log(1 + z ) for each line. ...
Measurement of Sky Brightness at the Iranian National Observatory Davoud Afshari1 and Sadollah Nasiri1,2 1Physics Department, Zanjan University, Zanjan 45195-313, Iran; Institute for Advanced studies in Basic Science (IASBS), Zanjan 45195-1159, Iran; Measurement of light pollution 2 Introduction Among 34 candidate sites at the central part of the country, 5 sites namely Garkesh (in Kashan ), Kolahbarfi(in Kashan ), Deynava (in ... One of these is light pollution. ...
... 364, 479--490 (2000) ASTRONOMY AND ASTROPHYSICS Decoupled nuclei and nuclear polar rings in regular spiral galaxies NGC 7217 # O.K. Sil'chenko 1,##,### and V.L. Afanasiev 2,+ 1 Sternberg Astronomical Institute, University av. ... Kinematics of stars and gas in NGC 7217 4.1. ... Twodimensional lineofsight velocity fields for the stars (left) and for the ionized gas (middle), and the map of the stellar velocity dispersion (right) in the central 16 ## в 16 ## of NGC 7217. ...
The following interview of Dr. Robert Seamans was conducted in Cambridge, Massachusetts by Michelle Kelly on November 20, 1998.] ... What I'd first like to ask you is, I think, where we left off last time is we discussed the decision to go to the moon and how that decision came about. ... Seamans: Sure. ... But one of the committees, I think it was the Heaton Committee, had to do with the best way to go to the moon. ... One was how soon could we go to the moon. ... Return to JSC Oral History Website . ...
... Programmable minimum/maximum temperature alarm · Indoor/outdoor temperature and humidity in up to 3 remote locations (additional sensors required) · Barometric pressure in imperial or metric units · Altitude adjustment for pressure compensation · 24 hour barometric pressure history chart · Comfort level indicators (Dry, Humid and Comfort) 5 FRONT A B C G H D E F I REAR J K L 6 A. WEATHER FORECAST/ PRESSURE window B ... Press and hold ALARM button until the temperature digits flashing...
[
Текст
]
Ссылки http://www.meade.com/manuals/weatherstations/TE636W_Instruction_Manual_031111.pdf -- 837.2 Кб -- 07.11.2011 Похожие документы
... 000, 113 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colourcolourmagnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colourmagnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...