... (degrees) b2 galactic latitude (degrees) sgl supergalactic longitude (degrees) sgb supergalactic latitude (degrees) pgc PGC name *** alphabetical ** ident1 1st name (NGC,IC,UGC,ESO...) *** alphabetical ** pa position angle (N- E) in degrees typ morphological type (e.g. 'E','Sab','SBa','SO') *** alphabetical ** ring 'R' for Ring galaxies, otherwise ' ' (blank) *** alphabetical ** multiple 'M' for multiple galaxies, otherwise ' ' (blank) *** ...

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In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

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... Colour transformations are supplied only for the three visual bandpass filter (U, B, V). ... compute the colour term (mag1-mag2) in the instrumental system . select the applicable colour transformation . ... the correct branch of the colour transformation is selected: . match the value of the optional parameter branch (if not set the default value 0 is used) to the value in the column BRANCH of the CCF COLOURMAG extension. the correct interval of the colour transformation is selected: . ...

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• Correction of the energy scale in specific pixels
• Exposure division, variance and adaptive smoothing

... Osservatorio Astronomico, Bologna, Italy . ... Dipartimento di Astronomia, Universit? di Bologna, Bologna, Italy . Stellar photometry of simulated HST uncorrected and corrected images of a crowded star cluster has been carried out before and after deconvolution (with RMG, R-L, MEM, etc.) to optimize the reduction procedures and compare the degree of completeness and photometric accuracy actually achievable in the various cases. ... Surface Brightness Profiles . ...

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• STIS Instrument Handbook
• Directory: ./ (JWST Pipeline routines in IDL)
• Stellar Photometry

The CHIANTI database consists of 4 primary ASCII files for each ion in the database. contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies. ... References: %filename: si_2.psplups %rates: Bely, O., Faucher, P., 1970, A 6, 88 %energies: Observed energies from .elvlc file. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Peter Young 8-Jun-2001 . ...

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B?rbel Koribalski (ATNF) + HIPASS and ZOA teams . Presented here are preliminary results from the "HIPASS Bright Galaxy Catalog" which currently includes more than 1000 of the HI brightest galaxies according to their HIPASS peak flux in the global HI spectrum. ... Sky distributions (Aitoff projection, STG projection, Galactic etc.) Histograms I. Measured HI properties (HI peak flux, total HI flux, systemic vel., widths, etc.) ... Comparisons (total HI flux vs w50, w20 vs w50, etc.) ...

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• moment
• HI mass calculator
• The HIPASS Bright Galaxy Catalog

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

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• ASP: Monster Comet Promises Big Show
• ASP: A Taste of Real Astronomy ? The ESA/ESO Astronomy Exercises

... Step 1: The magnetic field line tracing from the satellite position up to magnetic equatorial plane using IGRF magnetic field model. Step 2: Tracing back from the point (produced on the Step 1) to the Ionosphere (by using only dipole magnetic field) . ... The magnetic field line tracing from the satellite position up to the Ionosphere (the stop trace altitude 110 km) using Main (dipole) + Extraterrestrial magnetic field model (for example, Tsyganenko [1987], or [1989], or [1990] ) . ...

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• CYlindrical GAmma-ray Monitor CYGAM -
• The Brightest Moon

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

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• Bright Supernova - Archives
• Supernova 1999da in NGC 6411
• Supernova 1999dh in IC 211

From: TerryMosel aol.com Date: Sat, 12 Jun 2004 19:20:37 EDT Subject: Delta Scorpii Bright? ... I quote: "Delta Scorpii tonight was estimated as not far off the brightness of Antares, unless it's my eyes playing tricks! According to Starry Night Pro 4.5, Delta is supposed to be mag 2.3 but it seems to be nearly equal brightness with Antares which is supposed to be mag 1.1 and that is still allowing for the difference in colour. ... Clear Skies, Terry Moseley . ...

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• Bright fireball seen over Ireland | International Year of Astronomy in Ireland
• Armagh Observatory
• Coronal Bright Points: Another Oscillating Environment

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

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