OpenNGC OpenNGC is a database containing positions and main data of NGC (New General Catalogue) and IC (Index Catalogue) objects. It has been built by merging data from NED, HyperLEDA, SIMBAD, and several databases available at HEASARC. In this VO publication, we have changed most of the column names, mostly to make them work as ADQL column names without resorting to delimited identifiers. The mapping should be obvious. 2017-07-18T14:00:00 50 nebulae surveys Verga, M. https://github.com/mattiaverga/OpenNGC Research Catalog Updated to upstream commit 1739 7545, which added a few objects and fixed some minor mistakes. Updated to upstream commit 4ffc 6be0, which adds proper motions and radial velocities/redshifts to many objects. Updated to upstream commit da4b 5cb1, which improves the presentation of the sources of the data. Updated to upstream commit 3ae3ee5, containing numerous fixes after a comparison with Harold Corwin's notes. Updated to v20200329; also adding the first outlines as MOCs Updated to v20191019 Updated to v20190920 Updated to v20190609 10.21938/y.1ejWUD_MQ6b_eDFoVbbw The OpenNGC object list with the main metadata Position ICRS Epoch J2000 "raj2000" "dej2000" bandid, bandname, ucd B, B Band, em.opt.B V, V Band, em.opt.V J, J Band, em.ir.J H, H Band, em.ir.H K, K Band, em.ir.K bandid, bandname, ucd U, U Band, em.opt.U B, B Band, em.opt.B V, V Band, em.opt.V The object type is encoded as follows: =========== ======================================== ``*`` Star ``**`` Double star ``*Ass`` Association of stars ``OCl`` Open Cluster ``GCl`` Globular Cluster ``Cl+N`` Star cluster + Nebula ``G`` Galaxy ``GPair`` Galaxy Pair ``GTrpl`` Galaxy Triplet ``GGroup`` Group of galaxies ``PN`` Planetary Nebula ``HII`` HII Ionized region ``DrkN`` Dark Nebula ``EmN`` Emission Nebula ``Neb`` Nebula ``RfN`` Reflection Nebula ``SNR`` Supernova remnant ``Nova`` Nova star ``NonEx`` Nonexistent object ``Dup`` Duplicated object (cf. NGC or IC column) ``Other`` See object notes =========== ======================================== The numbers correspond to the following resources: == ============================================== 1 `NASA Extragalactic Database`_ 2 `SIMBAD Astronomical Database`_ 3 HyperLeda (:bibcode:`2003A&A...412...45P`) 4 Harold Corwin's NGC/IC Positions and Notes 5 `HEASARC mwsc table`_ 6 `HEASARC smcclustrs table`_ 7 `HEASARC lmcextobj table`_ 8 `HEASARC plnebulae table`_ 9 `HEASARC lbn table`_ 10 `HEASARC messier table`_ 11 `HEASARC lyngaclust table`_ 99 OpenNGC revised data == ============================================== .. _NASA Extragalactic Database: http://ned.ipac.caltech.edu/forms/data.html .. _SIMBAD Astronomical Database: http://simbad.u-strasbg.fr/simbad/sim-fbasic .. _HEASARC mwsc table: https://heasarc.gsfc.nasa.gov/W3Browse/all/mwsc.html .. _HEASARC smcclustrs table: https://heasarc.gsfc.nasa.gov/W3Browse/all/smcclustrs.html .. _HEASARC lmcextobj table: https://heasarc.gsfc.nasa.gov/W3Browse/all/lmcextobj.html .. _HEASARC plnebulae table: https://heasarc.gsfc.nasa.gov/W3Browse/all/plnebulae.html .. _HEASARC lbn table: https://heasarc.gsfc.nasa.gov/W3Browse/all/lbn.html .. _HEASARC messier table: https://heasarc.gsfc.nasa.gov/W3Browse/all/messier.html .. _HEASARC lyngaclust table: https://heasarc.gsfc.nasa.gov/W3Browse/all/lyngaclust.html dest, src name, Name obj_type, Type constellation, Const pos_ang, PosAng mag_b, B-Mag mag_v, V-Mag mag_j, J-Mag mag_h, H-Mag mag_k, K-Mag surf_br_B, SurfBr cstar_mag_u, Cstar U-Mag cstar_mag_b, Cstar B-Mag cstar_mag_v, Cstar V-Mag messier_nr, M other_ngc, NGC ic_cross, IC cstar_id, Cstar Names other_id, Identifiers comname, Common names ned_notes, NED notes notes, OpenNGC notes pmra, Pm-RA pmdec, Pm-Dec rv, RadVel z, Redshift Hand-drawn coverages of selected openngc objects. Up to three coverages at different surface brightness are obtained using the default DSS2 Color layer in Aladin. Usually, the level 2 shape is taken with default histogram, while level 1 and level 3 use, respectvely, the first and the last half of the histogram. set() 12 def parseShapeFile(f): polys = [[]] for lnNo, ln in enumerate(f): if ln.startswith("line"): parts = ln.split() if parts[1] in '*+.': polys[-1].extend((float(parts[2]), float(parts[3]))) else: raise utils.SourceParseError("Bad line", offending=ln, location=str(lnNo+1), source=f.name) if parts[1]=='*': polys.append([]) # For some odd reason, the first point in each shape file appears # to be duplicated. Chuck it for now. polys[0][:2] = [] if not polys[-1]: del polys[-1] parts = [ getASCIIMOCForPoly(pgsphere.SPoly.fromDALI(p)) for p in polys] return " ".join(parts)+" "+str(mocOrder)+"/" def parseShapeFor(ri, objName, level): ri.sourceToken = rd.getAbsPath( "data/outlines/objects/%s_lv%s.txt"%(objName, level)) try: with open(ri.sourceToken, "r") as f: return parseShapeFile(f) except IOError: # we believe the shape doesn't exist return None def parseShapeFileName(fName): mat = re.match("(.*)_lv([0-9]).txt", os.path.basename(fName)) return mat.group(1), mat.group(2) # The following is lifted from cdshealpix's healpix.py; # The C++ healpix code can't deal with the polygons here, # and thus we're using the rust version (which this expects # in cdshealpix/; that's not in the VCS). from cffi import FFI ffi = FFI() ffi.cdef(""" typedef struct { uint8_t depth; uint64_t hash; uint8_t flag; } bmoc_cell; typedef struct { uint32_t ncells; bmoc_cell* cells; } bmoc; void bmoc_free(bmoc* bmoc); bmoc* hpx_query_polygon_approx(unsigned char depth, int n_vertices, double* vertices_coords);""") cdshealpix = ffi.dlopen(rd.getAbsPath( "cdshealpix/libcdshealpix_ffi.so")) def getASCIIMOCForPoly(poly): """returns an ASCII MOC for an SPoly p. """ coos = [] for pt in poly.points: coos.extend([pt.x, pt.y]) cells = cdshealpix.hpx_query_polygon_approx( mocOrder, len(coos)//2, coos) parts = [] for i in range(cells.ncells): parts.append("%s/%s"%( cells.cells[i].depth, cells.cells[i].hash)) cdshealpix.bmoc_free(cells) return " ".join(parts) objectName, level = parseShapeFileName(self.sourceToken) if objectName in seenObjs: return seenObjs.add(objectName) rec = {"name": objectName, "deepest_shape": None} for level in range(1,4): rec["shape_level%d"%level] = parseShapeFor(self, objectName, level) if rec["deepest_shape"] is None: rec["deepest_shape"] = rec["shape_level%d"%level] yield rec `_. ]]> date: 2023-11-08 date.role: ExportRequested openNGC 202.46 47.2 0.1 /tap/sync row = self.getFirstVOTableRow() self.assertEqual(row["constellation"], "Tau") self.assertAlmostEqual(row["raj2000"], 83.633208333) self.assertAlmostEqual(row["maj_ax_deg"], 0.13333334) self.assertAlmostEqual(row["name"], "NGC1952") /tap/sync self.assertEqual(self.getVOTableRows(), []) /openngc/q/web/form self.assertHasStrings("NGC5195", "571.0", "5.50", " V-Mag:3 ") /openngc/q/web/scs.xml row = self.getFirstVOTableRow(rejectExtras=False) self.assertAlmostEqual(row["z"], 0.0015500000) self.assertAlmostEqual(row["maj_ax_deg"], 0.22849999368190765)