... omdetect (omdetect-5.14.2) [?? Meta Index / Home Page / Algorithm Omdetect will find sources on an image using both a peak-finding and connected-pixel algorithm. The former will mainly detect ``point'' sources and the latter ``extended'' sources. The peak-finding algorithm is used first to try to locate all point sources, in order of decreasing brightness. This algorithm mainly overcomes problems with modular-8 patterns around bright sources and scattered light features. ...

Target Acquisition Reference Information . ... In almost all cases where an onboard acquisition will not work (because the object is in a crowded field, or is variable, or is a moving target), it is sufficient to use an early acquisition to get a WFPC2 or FOC image a few weeks in advance of the GHRS observation. ... Explicit BRIGHT and FAINT limits may be specified if you desire, although there is an increased risk of a failed acquisition unless you are confident of those fluxes. ... MAPs . ...

... Apache HTTP Server Version 2.2 . ... On systems with multiple users, each user can be permitted to have a web site in their home directory using the UserDir directive. Visitors to a URL http://example.com/~username/ will get content out of the home directory of the user " username ", out of the subdirectory specified by the UserDir directive. ... Per-user web directories . ... the URL http://example.com/~rbowen/file.html will be translated to the file path /home/rbowen/public_html/file.html . ...

. Next: CORAVG Up: Details of SCHED Parameters Previous: CENTERS Contents . COMMENT is a string of up to 128 characters to be written on operator and telescope files just before the scan. Argument: Text up to 128 characters. Options: Any. Default: Blank . Usage: Reverts to no comment if not specified for each scan. Example: COMMENT='ET, call home.' . Craig Walker 2014-04-14

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Our Galaxy . ... To locate it, look along the imaginary line between the two end stars on the leading edge of the PloughтАЩs blade (Merak and Dubhe) and Polaris (the North Star), the galaxy M82 (also known as the Cigar Galaxy) along with its companion M81, lies just off this line about a third of the way between the Plough and Polaris. €а€аAs usual, the supernova is far brighter than its home galaxy, appearing as an extra star. ...

... Jupiter without its Southern Equatorial Belt . The Southern Equatorial Belt (SEB) started to fade during the latter part of 2009 and completely disappeared around May of 2010. It is believed that bright ammonia clouds obscure the dark belt at irregular intervals. The SEB previously vanished in 2007. The belt returned around November 2010. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Brightest Northern Hemisphere Galaxy . Forum List | ... Post Message | ... In which constellation would I find the brightest galaxy in the northern hemisphere? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Archives . ... In the XSPEC packages, the parametric bootstrap is command FAKEIT, which makes Monte Carlo simulation of specified spectral model. XSPEC does not provide a nonparametric bootstrap capability. Parametric Bootstrap: $$X_1^*,?, X_n^* \sim F(\cdot;\theta_n)$$ . Both $$\sqrt{n} \sup_x |F_n(x)-F(x;\theta_n)|$$ and $$\sqrt{n} \sup_x |F_n^*(x)-F(x;\theta_n^*)|$$ have the same limiting distribution. ... Nonparametric Bootstrap: $$X_1^*,?, ... Comment ( RSS ) | ... Chandra Blog . ...

... Therefore, the menu location # "Blur/Blur" specifies an item name of "Blur" in a submenu entitled # "Blur". ... It is convention to only use the `alt' and `shift' key modifiers for # plug-ins. ... The main application will not use the ` alt ' # or ` shift ' key modifiers. plug-in blur Blur / Blur Alt Key B Alt +B plug-in gauss Blur /Gaussian Blur Shift Alt Key B Shft+ Alt +B plug-in gauss_rle Blur /Gaussian Blur RLE plug-in gauss_recurse Blur /Gaussian ...

. Comment on J1130-1449 . There are two dominant components in our image. Comparison with the 15 GHz image of Kellermann et al. (1998) reveals that the western component is brighter at the higher frequency, indicating that the brighter (eastern) component in our image may have a steep spectrum. VLBApls home page . Last modified: 16 Oct 2000

Leda home | Search object | SQL | Field . Access from Aladin . The access to LEDA from Aladin allows to display the galaxies in a field centered on coordinates or on an object specified by its designation. ... When a name is provided to Aladin, its position is searched in Simbad and LEDA is searched around this position. ... It is optionally possible to specify additional constraints to filter the list of galaxies returned by LEDA. ... leda@univ-lyon1.fr ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

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... StarMgr Class Reference . ... Get the current color used to label bright stars. ... Get Epoch for maximum light for a variable star with a specified Hipparcos catalogue number. static int StarMgr::getGcvsMagnitudeFlag . ... Get the magnitude flag code for a variable star with a specified Hipparcos catalogue number. static float StarMgr::getGcvsMaxMagnitude . ... Get the minimum magnitude or amplitude for a variable star with a specified Hipparcos catalogue number. static int StarMgr::getGcvsMM . ...

Around Cape Horn SOURCE: Bob Pfeffer SOURCE'S SOURCE: Lisa Null COMMENTS: From Gale Huntington TEXT: D A7 D Around Cape Horn the young men go A7 D When the young men go away A7 D Then the young girls dress up neat D G They go a-cruisin' down the street A7 REFRAIN: Right fol day, fol-de-diddle day A7 D Right fol right-o, fol-de-diddle day Far from the fields are the young men gone Far from home and all forlorn Wish to God they'd never been born For to go out cruisin' round Cape Horn .. ...

This page is devoted to information on supernova 1999ee and 1999ex in IC 5179 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. ... Use this 1999ee VSNet data query and this 1999ex VSNet data query to see what information has been reported so far. ... vsnet-alert 3714 ] SNe 1999ex and 1999ee in IC 5179 . ...

... Bojan Nikolic web pages home . ... Previous: Visiting ALMA Santiago office and the ALMA.. This is the second memo in the series. ... By observing bright and compact astronomical sources while also taking data with the 183 GHz Water Vapour Radiometers, ALMA will be able to measure the `empirical' relationship between fluctuations in the phase of the astronomical signal and the fluctuations of sky brightness around 183 GHz. ... Copyright 2012, Bojan Nikolic feedback welcome ...

... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... т??Bright spotт?? on Ceres has dimmer companion . ... It shows that the brightest spot on Ceres has a dimmer companion, which apparently lies in the same basin. ... The latest images from Dawn, taken nearly 29,000 miles (46,000 kilometers) from Ceres, reveal that a bright spot that stands out in previous images lies close to yet another bright area. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... NED Home . ... Redshift: Between 0.150000 and 0.270000 . Include ALL Object Type: QSO Radio . ... Number of Essential Note) RA DEC Type km/s z Qual arcmin Refs Notes Phot Posn Vel/z Assoc Images 1 30000 0.228000 0.0 26 0 8 3 0 0 Retrieve 2 30000 0.181000 0.0 5 0 4 1 0 0 Retrieve 3 30000 0.171000 0.0 67 1 1 0 0 0 Retrieve 4 30000 0.260000 0.0 90 1 16 5 0 0 Retrieve 5 30000 0.163009 0.0 170 10 5 4 3 0 Retrieve 6 30000 0.245000 0.0 27 1 1 2 1 0 Retrieve 7 30000 ...