Basic object information Name: M 65 Type of object: Galaxy Magnitude: 10.1 Surface brightness: 12.3 mag/sq arcmin Size: 9.0'x2.3' Position angle: 174° Position (epoch of date) Right ascension: 11h 19m 6s Declination: +13° 4' 22" Constellation: Leo Local information Altitude: -1° 4' 41" Azimuth: 288° 33' 34" Rise: 20h 21m 47s Transit: 3h 15m 3s Set: 10h 4m 23s Star atlas chart numbers: Herald-Bobroff Astroatlas, Chart C-48 Millennium Star Atlas, Charts 729-730 (Vol II) Sky Atlas 2000.0, Chart 13 Uranometria 2000 Chart 191, Vol 1 Revised NGC/IC Catalog Data Wolfgang Steinicke, Feb 2001 Names and designations M 65 PGC 34612 NGC 3623 UGC 6328 MCG 2-29-18 IRAS11163+1322 ZWG 67.54 VV 308 Type of object: Galaxy Catalog position for epoch J2000.0 Right ascension: 11h 18m 55.6s Declination: +13° 05' 25" Object information Magnitude: 10.1 Size: 9.0'x2.3' Position angle: 174° Object classification: SBa Remarks: ARP 317 Saguaro Astronomy Club v7.2 Catalog Data Saguaro Astronomy Club, August 2000 Names and designations M 65 NGC 3623 Type of object: Galaxy Catalog position for epoch J2000.0 Right ascension: 11h 18m 55.2s Declination: +13° 05' 35" Constellation: Leo Object information Magnitude: 9.3 Size: 9.0'x2.3' Position angle: 174° Object classification: SBa Description: B,vL,mE 165,gbMBN Notes: M66 subgroup LEDA Catalog Data Lyon-Meudon Extragalactic Database (LEDA) supplied by the LEDA team at the CRAL-Observatoire de Lyon (France) Names and designations PGC 34612 MESS 65 NGC 3623 UGC 6328 MCG 2-29- 18 CGCG 67- 54 IRAS11163+1322 (ARP 317 ) (VV 308 ) Position information Right ascension (J2000.0): 11h 18m 55.2s Declination (J2000.0): +13° 05' 35" (Coordinates have high accuracy) Galactic longitude: 241.33° Galactic latitude: 64.22° Supergalactic longitude: 96.43° Supergalactic latitude: -18.69° Size and shape information Apparent major isophotal diameter (D25): 9.2' Mean error in log10 diameter: 0.031 Ratio of major to minor axes (R25): 4.09 Mean error in log10 R25: 0.054 Major axis position angle: 174° Inclination between line of sight and polar axis: 90.000° Apparent corrected diameter: 9.1' Lyon galaxy group membership number: 231 Morphological information Morphological type: SBa Object has bar Morphological type code: 1.084 Error in morphological type code: 0.698 Luminosity class code: 3.000 Error in luminosity class code: 0.368 Magnitude and colour index information Total B magnitude: 10.159 Error in B magnitude: 0.206 Mean surface brightness: 21.173 mag/sq arcsec Error in surface brightness: 0.490 mag/sq arcsec Total U-B colour index: 0.450 Total B-V colour index: 0.920 Effective U-B colour index: 0.525 Effective B-V colour index: 0.975 21cm line width at 20% of peak (w20): 504.213 km/sec Error in w20: 9.505 km/sec 21cm line width at 50% of peak (w50): 472.851 km/sec Error in w50: 20.108 km/sec Central velocity dispersion: 173 km/sec Error in log10 velocity dispersion: 0.073 21cm line flux in magnitude: 14.225 Error in 21cm line flux in magnitude: 0.203 Far infrared magnitude: 11.345 Galactic extinction in B mag: 0.231 mag Extinction in B mag due to inclination: 0.474 mag 21cm self-absorption in magnitude: 0.826 mag Luminosity index: 0.326 Total apparent corrected B mag: 9.444 Total apparent corrected U-B colour index: 0.290 Total apparent corrected B-V colour index: 0.749 Mean surface brightness within isophote 25: 23.115 mag/sq arcsec Maximum rotational velocity: 226.5 km/sec Error in log10 rotational velocity: 0.014 Corrected 21cm line flux in magnitude: 13.399 21cm index bt-am21c in magnitude. 3.956 Radial velocity information Heliocentric RV from radio measurements: 807.4 km/sec Error in radio measurements: 11.3 km/sec Heliocentric RV from optical measurements: 769.1 km/sec Error in optical measurements: 79.7 km/sec Mean heliocentric RV: 806.6 km/sec Error in mean measurements: 11.2 km/sec RV with respect to local group: 676.5 km/sec RV with respect to GSR: 722.5 km/sec RV corrected for infall of LG onto Virgo: 838.0 km/sec RV with respect to the 3K CMB: 1147.1 km/sec Kinematic distance modulus: 30.241 Absolute B magnitude: -20.797 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Basic object information Name: M 66 Type of object: Galaxy Magnitude: 9.7 Surface brightness: 11.8 mag/sq arcmin Size: 9.1'x4.1' Position angle: 173° Position (epoch of date) Right ascension: 11h 20m 25s Declination: +12° 58' 19" Constellation: Leo Local information Altitude: -0° 54' 41" Azimuth: 288° 15' 55" Rise: 20h 23m 29s Transit: 3h 16m 22s Set: 10h 5m 20s Star atlas chart numbers: Herald-Bobroff Astroatlas, Chart C-48 Millennium Star Atlas, Charts 727-728 (Vol II) Sky Atlas 2000.0, Chart 13 Uranometria 2000 Chart 191, Vol 1 Revised NGC/IC Catalog Data Wolfgang Steinicke, Feb 2001 Names and designations M 66 PGC 34695 NGC 3627 UGC 6346 MCG 2-29-19 ARP 16 ZWG 67.57 ARAK 288 Type of object: Galaxy Catalog position for epoch J2000.0 Right ascension: 11h 20m 15.1s Declination: +12° 59' 22" Object information Magnitude: 9.7 Size: 9.1'x4.1' Position angle: 173° Object classification: SBb Remarks: ARP 317, VV 308 Saguaro Astronomy Club v7.2 Catalog Data Saguaro Astronomy Club, August 2000 Names and designations M 66 NGC 3627 Type of object: Galaxy Catalog position for epoch J2000.0 Right ascension: 11h 20m 14.4s Declination: +12° 59' 42" Constellation: Leo Object information Magnitude: 8.9 Size: 9.1'x4.1' Position angle: 173° Object classification: SBb Description: B,vL,mE 150,mbM,2 st np Notes: brightest in group;M 65 & NGC 3628 in field LEDA Catalog Data Lyon-Meudon Extragalactic Database (LEDA) supplied by the LEDA team at the CRAL-Observatoire de Lyon (France) Names and designations PGC 34695 MESS 66 NGC 3627 UGC 6346 MCG 2-29- 19 CGCG 67- 57 (ARP 317 ) ARP 16 (VV 308 ) ARAK 288 Position information Right ascension (J2000.0): 11h 20m 14.4s Declination (J2000.0): +12° 59' 42" (Coordinates have high accuracy) Galactic longitude: 241.95° Galactic latitude: 64.42° Supergalactic longitude: 96.66° Supergalactic latitude: -18.42° Size and shape information Apparent major isophotal diameter (D25): 8.6' Mean error in log10 diameter: 0.046 Ratio of major to minor axes (R25): 2.14 Mean error in log10 R25: 0.046 Major axis position angle: 173° Inclination between line of sight and polar axis: 66.175° Apparent corrected diameter: 8.8' Lyon galaxy group membership number: 231 Morphological information Morphological type: SBb Object has bar Object is multiple Morphological type code: 3.094 Error in morphological type code: 0.416 Luminosity class code: 3.000 Error in luminosity class code: 0.426 Magnitude and colour index information Total B magnitude: 9.597 Error in B magnitude: 0.207 Mean surface brightness: 20.697 mag/sq arcsec Error in surface brightness: 0.490 mag/sq arcsec Total U-B colour index: 0.200 Total B-V colour index: 0.730 Effective U-B colour index: 0.270 Effective B-V colour index: 0.820 21cm line width at 20% of peak (w20): 377.312 km/sec Error in w20: 10.421 km/sec 21cm line width at 50% of peak (w50): 339.260 km/sec Error in w50: 14.850 km/sec Central velocity dispersion: 178.6 km/sec Error in log10 velocity dispersion: 0.055 21cm line flux in magnitude: 13.444 Error in 21cm line flux in magnitude: 0.518 Far infrared magnitude: 8.592 Galactic extinction in B mag: 0.231 mag Extinction in B mag due to inclination: 0.479 mag 21cm self-absorption in magnitude: 0.041 mag Luminosity index: 0.583 Total apparent corrected B mag: 8.882 Total apparent corrected U-B colour index: 0.106 Total apparent corrected B-V colour index: 0.611 Mean surface brightness within isophote 25: 22.467 mag/sq arcsec Maximum rotational velocity: 177.0 km/sec Error in log10 rotational velocity: 0.020 Corrected 21cm line flux in magnitude: 13.403 21cm index bt-am21c in magnitude. 4.521 Radial velocity information Heliocentric RV from radio measurements: 727.2 km/sec Error in radio measurements: 9.1 km/sec Heliocentric RV from optical measurements: 700.3 km/sec Error in optical measurements: 47.4 km/sec Mean heliocentric RV: 726.2 km/sec Error in mean measurements: 9.0 km/sec RV with respect to local group: 595.8 km/sec RV with respect to GSR: 642.3 km/sec RV corrected for infall of LG onto Virgo: 757.5 km/sec RV with respect to the 3K CMB: 1066.8 km/sec Kinematic distance modulus: 30.022 Absolute B magnitude: -21.140 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Basic object information Name: NGC 3628 Type of object: Galaxy Magnitude: 10.4 Surface brightness: 14.7 mag/sq arcmin Size: 13.1'x3.1' Position angle: 104° Position (epoch of date) Right ascension: 11h 20m 27s Declination: +13° 34' 19" Constellation: Leo Local information Altitude: 0° 3' 56" Azimuth: 288° 41' 57" Rise: 20h 21m 13s Transit: 3h 16m 24s Set: 10h 7m 39s Star atlas chart numbers: Herald-Bobroff Astroatlas, Chart C-48 Millennium Star Atlas, Charts 727-728 (Vol II) Sky Atlas 2000.0, Chart 13 Uranometria 2000 Chart 191, Vol 1 Revised NGC/IC Catalog Data Wolfgang Steinicke, Feb 2001 Names and designations NGC 3628 PGC 34697 UGC 6350 MCG 2-29-20 ZWG 67.58 Type of object: Galaxy Catalog position for epoch J2000.0 Right ascension: 11h 20m 16.7s Declination: +13° 35' 22" Object information Magnitude: 10.4 Size: 13.1'x3.1' Position angle: 104° Object classification: Sb Remarks: ARP 317, VV 308, IRAS11176+1351 Saguaro Astronomy Club v7.2 Catalog Data Saguaro Astronomy Club, August 2000 Names and designations NGC 3628 UGC 6350 Type of object: Galaxy Catalog position for epoch J2000.0 Right ascension: 11h 20m 16.2s Declination: +13° 35' 21" Constellation: Leo Object information Magnitude: 9.5 Size: 13.1'x3.1' Position angle: 104° Object classification: Sb Description: pB,vL,vmE 102 Notes: H V 8;Leo group;disturbed LEDA Catalog Data Lyon-Meudon Extragalactic Database (LEDA) supplied by the LEDA team at the CRAL-Observatoire de Lyon (France) Names and designations PGC 34697 NGC 3628 UGC 6350 MCG 2-29- 20 CGCG 67- 58 IRAS11176+1351 (ARP 317 ) (VV 308 ) Position information Right ascension (J2000.0): 11h 20m 16.2s Declination (J2000.0): +13° 35' 21" (Coordinates have high accuracy) Galactic longitude: 240.85° Galactic latitude: 64.78° Supergalactic longitude: 96.07° Supergalactic latitude: -18.20° Size and shape information Apparent major isophotal diameter (D25): 12.9' Mean error in log10 diameter: 0.060 Ratio of major to minor axes (R25): 3.89 Mean error in log10 R25: 0.082 Major axis position angle: 104° Inclination between line of sight and polar axis: 87.571° Apparent corrected diameter: 12.9' Lyon galaxy group membership number: 231 Morphological information Morphological type: Sb Morphological type code: 3.120 Error in morphological type code: 0.355 Luminosity class code: 5.000 Error in luminosity class code: 0.500 Magnitude and colour index information Total B magnitude: 10.270 Error in B magnitude: 0.176 Total B-V colour index: 0.800 Effective U-B colour index: 0.710 Effective B-V colour index: 0.840 21cm line width at 20% of peak (w20): 478.053 km/sec Error in w20: 9.234 km/sec 21cm line width at 50% of peak (w50): 448.606 km/sec Error in w50: 5.328 km/sec Central velocity dispersion: 176.2 km/sec Error in log10 velocity dispersion: 0.055 21cm line flux in magnitude: 11.406 Error in 21cm line flux in magnitude: 0.213 Far infrared magnitude: 8.767 Galactic extinction in B mag: 0.231 mag Extinction in B mag due to inclination: 0.807 mag 21cm self-absorption in magnitude: 0.373 mag Luminosity index: 0.734 Total apparent corrected B mag: 9.226 Mean surface brightness within isophote 25: 23.637 mag/sq arcsec Maximum rotational velocity: 214.3 km/sec Error in log10 rotational velocity: 0.009 Corrected 21cm line flux in magnitude: 11.033 21cm index bt-am21c in magnitude. 1.808 Radial velocity information Heliocentric RV from radio measurements: 846.7 km/sec Error in radio measurements: 4.0 km/sec Heliocentric RV from optical measurements: 809.0 km/sec Error in optical measurements: 57.7 km/sec Mean heliocentric RV: 846.5 km/sec Error in mean measurements: 4.0 km/sec RV with respect to local group: 719.0 km/sec RV with respect to GSR: 764.7 km/sec RV corrected for infall of LG onto Virgo: 880.7 km/sec RV with respect to the 3K CMB: 1185.9 km/sec Kinematic distance modulus: 30.349 Absolute B magnitude: -21.123