NGC 3918

C.D.S. - SIMBAD4 rel 1.7 - 2018.12.10CET08:58:56

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
NGC 3918 -- Planetary Nebula
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (CPD,GCRV,...), PN (Ref,Hen,...), G (AM,ESO), cm (AT20G,ATPMN), Rad (PMN), IR (IRAS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
11 50 17.7723407998 -57 10 57.059135256 (Optical) [ 0.7060 0.5507 90 ] A 2018yCat.1345....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK5 coord. (ep=J2000 eq=2000) :
11 50 17.7723407998 -57 10 57.059135256 [ 0.7060 0.5507 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
11 47 48.9610788152 -56 54 15.814284093 [ 62.4043 50.5032 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
294.6895670957138 +04.7075404957639 [ 0.7060 0.5507 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
-3.228 2.718 [1.248 1.010 90] A 2018yCat.1345....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) -16.4 [2] / z(~) -0.000055 [0.000007] / cz -16.40 [2.00]
   E 1953GCRV..C......0W
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (incl) : inclination (in units of 15° from 0 to 7)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin):
0.313 0.313 90 (Rad) D 2008ApJ...689..194S
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (3) :
B 10.0 [~] D ~
V 8.5 [~] D ~
G 13.4238 [0.0073] C 2018yCat.1345....0G
SIMBAD with radius arcmin
Interactive AladinLite view
Back
sedIcon
VizieR photometry viewer    sed-help-icon
within radius arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (23) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 3918 GCRV 7159 PMN J1150-5711 SCM 64
AM 1147-565 GSC 08639-02315 PN G294.6+04.7 TYC 8639-2315-1
AT20G J115017-571056 HD 102854 PN Sa 2-81 WEB 10362
ATPMN J115017.7-571056 Hen 2-74 PN VV 61 WRAY 16-101
CPD-56 4818 IRAS 11478-5654 PN VV' 109 Gaia DR2 5342260406474812416
ESO 170-13 PK 294+04 1 PN ARO 514

Plots and Images

plot

radius arcmin


CDS portal

CDS Simplay
(requires flash)

Aladin applet

References (26 between 2014 and 2019) (Total 356)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)


Collections of Measurements


distance : 1    velocities : 2    PM : 1   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

distance (1)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 | 1639       pc  |                       |        |2008ApJ...689..194S|
 

velocities (2)

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |v  |  -16.4                 |  (   3)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 

pm (1)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -3.228[    1.248]|   +2.718[    1.010]|ICRS|2018yCat.1345....0G|
 
Observing logs


ISO : 9    IUE : 27   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

iso (9)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier
VI/111/isolog
Post annotation
ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp]

*The ISO Observation Log (36737 rows) (Note)
img(gal)
start AladinLite

Full _r TDT AOT minLam maxLam Target oStart oLen recno FOV RAJ2000 DEJ2000 cal ObsID abs PropID arcmin um um s s deg deg
1 0.175 02300201 LWS99 -1.00 -1.00 NGC 3918 1995-12-10T08:21:13 1614 255 84" D 177.5784 -57.1808 * LWS_CAL L109V03 2 0.175 02700101 LWS99 -1.00 -1.00 NGC 3918 1995-12-14T07:03:23 5028 391 84" D 177.5784 -57.1808 * LWS_CAL L207AV01 3 0.177 26700720 LWS01 43.01 195.85 NGC 3918 1996-08-09T19:13:18 1268 11107 84" D 177.5786 -57.1809 MBARLOW + DUST3 4 0.183 29900102 SWS02 5.30 35.64 NGC 3918 1996-09-10T14:58:55 704 12780 33"x20" 177.5787 -57.1808 DBEINTEM + PNEBULAE 5 0.183 29900201 SWS01 2.38 45.20 NGC 3918 1996-09-10T15:11:21 1140 12781 33"x20" 177.5787 -57.1808 DBEINTEM + PNEBULAE 6 0.186 04000878 SWS02 2.61 36.26 NGC3918 1995-12-27T09:51:49 2346 896 20"x14" 177.5788 -57.1808 SWS_CAL SWSPV_2 7 0.186 07901201 SWS01 2.38 45.21 NGC 3918 1996-02-04T10:15:10 1044 2486 33"x20" 177.5788 -57.1808 DBEINTEM + PNEBULAE 8 0.186 08401403 PHT40 2.47 8.95 NGC 3918 1996-02-09T10:01:22 172 2689 24"x24" 177.5788 -57.1808 DBEINTEM + PNEBULAE 9 8.195 26700749 LWS01 43.01 195.88 NGC3918 off 1996-08-09T18:51:14 1268 11108 84" D 177.3292 -57.1504 MBARLOW + DUST3

iue (27)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |NGC 3918        :            |PP2ED|70|L SWP 01906 S|        |780702 185000|001200| |   |G|                    |*|1996IUEML.C......0I|
 

External archives :

Data at NED - NASA/IPAC Extragalactic Database : NGC 3918

Link by name to the catalogue in VizieR :

NGC 3918 CPD-56 4818 GSC 08639-02315 HD 102854 IRAS 11478-5654
PMN J1150-5711 PN G294.6+04.7 TYC 8639-2315-1 Gaia DR2 5342260406474812416

Search by coordinates in Vizier (radius: 5 arcsec)


Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object



2018.12.10-08:58:56

© Université de Strasbourg/CNRS

    • Contact