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Deep-Sky Report

The Deep-Sky Report for each catalog is tailored to the catalog's data content. This gives you the fullest information on objects from each catalog without cluttering the report with impertinent data from other catalogs. If multiple catalogs are selected for the report, data items common to all selected catalogs are included. Times are accurate for the observer's location. Times and angular values are given in the format selected in Preferences. For single catalogs selections, positions, object sizes and magnitudes are reported with the same precision as the published catalog; for multiple catalog selections, sizes are reported in tenths of arc minutes, and positions and magnitudes are reported to the lowest precision of all selected catalogs.

Printed and exported documents contain a header section that on-screen documents provide in the settings pane of the document window. The header includes:

▪document name

▪observer's location (can be omitted from printing by activating the Print Saver)

▪search properties (can be omitted from printing by activating the Print Saver)

The body of the report (on-screen, printed, and exported) is column-oriented and the name of each column is listed below with a description. See Working with Reports to learn how to control content, layout and appearance of the report. Some columns appear only for certain catalogs as described.

Column Name	Description	Supported in Catalogs
Object	Catalog designation, object number	All
Common Name	Commonly used name by which the object is known. You may see the list of all common names by which the object is known by right-clicking the object and viewing the context menu.	All
Cross Ref	cross reference to other catalogs in the database. You may see the list of all cross references by which the object is known by right-clicking the object and viewing the context menu.	All
Type	object type	C, ESO, H, H2, IC, M, NGC and all multi-catalog reports
Con	Constellation in which the object is located	All
RA/ Decl	Astrometric position, precessed to epoch and mean equinox of J2000.0. The data are formatted as specified in Preferences.	All
Size	Angular size in units appropriate for the catalog.	Arp, Barn, C, Ced, ESO, GGC, H, H2, HCG, IC, LBN, LDN, M, MCG, Mrk, NGC, BOCL, PGC, PNG, Sh2, SNR, UGC, VdB, ZwCl
Mag	Magnitude and code identifying the photometric system used to derive the magnitude value. Magnitude codes are: ▪B: photographic using Johnson Blue filter ▪R: photographic using Johnson Red filter ▪V: photographic using Johnson Visual filter ▪b: photographic using another blue filter, including POSS blue plates ▪r: photographic using another red filter, including POSS red plates ▪v: visual or photovisual ▪p: photoelectric ▪<none>: not available	ACO, Arp, C, ESO, GGC, H, H2, HB93, HCG, IC, M, MCG, Mrk, NGC, PGC, PNG, UGC
B-V	B-V is a measure of the color of stars and galaxies. Larger values indicate reddening while smaller values indicate a stronger blue color.	C, ESO, H, H2, HB93, IC, M, Mrk, NGC, BOCL, PGC
SB	Surface brightness in magnitudes per square arcsecond (galaxies, globular clusters and some nebulae).	Arp, C, ESO, GGC, H, H2, HCG, IC, M, MCG, Mrk, NGC, PGC, PNG, UGC
Emission	Emission is the wavelength of the brightest emission line emitted by a nebulous object. A missing value indicates that the brightest emission line wavelength is unknown or not available. Emission may be one of Ha (656.3nm), Hb (486.1nm) or OIII (500.7nm). Emission is not a recommendation for the best filter to use, but it can be used to choose the best optical filter for observing or imaging a nebulous object. Choose a filter that includes the brightest emission line in its bandpass.	C, H, H2, IC, M, NGC, PNG
PA	Position angle of the major axis of the galaxy.	C, ESO, H, H2, IC, M, NGC, PGC, UGC
Incl	Inclination of the principal plane of the galaxy estimated on a scale from 1 (face on) to 5 (edge on) for MCG, stated in degrees for PGC.	MCG, PGC
Morphology	Morphology information per catalog: ▪ACO: number of members, Bautz-Morgan type ▪Arp: Hubble morphological type ▪BOCL: Trumpler type ▪C: Hubble morphological type for galaxies, Trumpler type for Open Clusters, Shapley-Sawyer concentration class for globular clusters ▪Ced: illuminating star magnitude ▪ESO: Morphological type in RC2 system ▪GGC: Shapley-Sawyer concentration class ▪H: Hubble morphological type for galaxies, Trumpler type for Open Clusters, Shapley-Sawyer concentration class for globular clusters ▪H2: Hubble morphological type for galaxies, Trumpler type for Open Clusters, Shapley-Sawyer concentration class for globular clusters ▪HB93: BL Lac indicates BL Lacerta object ▪HCG: Hubble morphological type ▪IC: Hubble morphological type for galaxies, Trumpler type for Open Clusters, Shapley-Sawyer concentration class for globular clusters ▪LBN: relative brightness and color, e.g., very faint blue ▪LDN: relative opacity, e.g. very dark ▪M: Hubble morphological type for galaxies, Trumpler type for Open Clusters, Shapley-Sawyer concentration class for globular clusters ▪Mrk: Hubble morphological type ▪NGC: Hubble morphological type for galaxies, Trumpler type for Open Clusters, Shapley-Sawyer concentration class for globular clusters ▪PGC: Hubble morphological type ▪PNG: central star magnitude ▪Sh2: relative brightness and morphology, e.g., m. bright irr ▪UGC: Hubble morphological type ▪vdB: relative brightness and color, e.g., mod bright v blue ▪ZwCl: number of members	ACO, Arp, C, Ced, ESO, GGC, H, H2, HB93, HCG, IC, LBN, LDN, M, Mrk, NGC, BOCL, PGC, PNG, Sh2, UGC, vdB, ZwCl
Alt	Apparent altitude at the ephemeris date and time. The angle is formatted as specified in Preferences.	All
Az	Apparent azimuth at the ephemeris date and time. The angle is formatted as specified in Preferences.	All
LHA	Local hour angle at the ephemeris date and time. The angle is formatted as hours and minutes East or West of the meridian.	All
Moon Dist	Angular distance between object and the Moon, unless: ▪Object is down ▪Sun is up ▪Moon is down	All
SA2000	Chart number on which the object appears in Sky Atlas 2000.0	All, but can be disabled globally in preferences
U2000	Volume and page number on which the object appears in Uranometria 2000.0. Note that there is some overlap in the two volumes, but the page number is valid for either volume	All, but can be disabled globally in preferences
MSA	Volume and page number on which the object appears in Millennium Star Atlas	All, but can be disabled globally in preferences
HB	Chart series (B & C) and page number on which the object appears in Herald-Bobroff AstroAtlas.	All, but can be disabled globally in preferences
U2000.2	Volume and page number on which the object appears in Uranometria 2000.0 2d Ed. Note that there is some overlap in the two volumes, but the page number is valid for either volume	All, but can be disabled globally in preferences
PSA	Chart number on which the object appears in Pocket Sky Atlas.	All, but can be disabled globally in preferences
IDSA	Chart number on which the object appears in interstellarum Deep Sky Atlas.	All, but can be disabled globally in preferences
Rise(Az), Set(Az)	Time of rise, set, and apparent azimuth at rise and set time for your location. If your location has a local horizon model defined for it and the model is applied to the ephemeris calculation, rise & set times are the approximate times at which an object rises above and sets beneath the local horizon model. The data are formatted as specified in Preferences.	All
Transit(Alt)	Time of transit and apparent altitude at transit. The data are formatted as specified in Preferences.	All
Best(Alt)	Best time to view and apparent altitude at best time. The data are formatted as specified in Preferences.	All
Vis Pred	Predicted visibility of the object computed by the extended obect visibility model. Please see visibility modeling for possible values for extended objects.	All
Observed	Whether or not present in the observing log	All