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LYNGACLUST - Lynga Open Clusters Catalog

HEASARC
Archive

Overview

This is a catalog of open cluster data, as compiled by Gosta Lynga, Lund Observatory. The aim of this catalog is to give salient data for all known open star clusters in our galaxy. As far as possible only published data values have been quoted; for some of the parameters, these values have been slected from references which can be obtained from the HEASARC.

This data in part results from the merging of the data resulting from a joint project between K. Janes, C. Duke and Lynga, herein refered to as JDL data. The aim of that project was to discuss properties of the open cluster system by using existing data and by taking their accuracy into proper regard. Thus the data were assessed, mostly by Janes, weight assigned and weighted mean values derived of reddenings, turn-off colors and distances.


Catalog Bibcode

<VII/92A/catalog>

References

Catalogue of Open Cluster Data, 5th Ed., Feb 1987, Gosta Lynga, Lund Observatory, Sweden.

Parameters

Name
Cluster designation.

Alt_Name
Alternative Cluster designation.

RA
The Right Ascension of the object.

Dec
The Declination of the object.

LII
The galactic longitude of the object.

BII
The galactic latitude of the object.

IAU_Num
IAU Number.

Seq_Code
Sequence code.

Seq_Num
The number inside the sequence.

Prec_RA
Precession, by 10 yrs, for RA, in minutes.

Prec_Dec
Precession, by 10 yrs, for Dec, in minutes.

Lund_Record_Num
Record Number on Lund disc, 1st record number is 0 (zero).

Ocl_Num
OCL number.

Angular_Diameter
Angular diameter, min of arc.

Ref_Angular_Diameter
Reference for Angular diameter.

Distance
Distance in parsecs.

Ref_Distance
Reference for distance.

Log_Age
Log (age), years.

Ref_Log_Age
Reference for age.

Metallicity
Metallicity, log.

Ref_Metallicity
Reference for metallicity.

E_BV
Reddening, E(B-V).

Ref_E_BV
Reference for reddening.

Type_Flag
Indication of cluster type.

Ref_Type_Flag
Reference for type flag.

Tr_Concent_Class
Trumpler concentration class.

Tr_Range_Class
Trumpler range class.

Tr_Richness_Class
Trumpler richness class.

Tr_Nebulosity
Trumpler Nebulosity (n/u/e=1/2/3).

SB_Bs_Mag
Strasbourg-Bochum mag, brightest.

SB_Spect_Code
Strasbourg-Bochum spectral class.

SB_Total_Mag
Strasbourg-Bochum total mag.

Sk_Total_Mag
B. Skiff total magnitude.

Sk_BV_Color
Skiff integrated B-V.

Sk_Num_Stars
Number of Skiff stars considered.

Ja_Star_Num
Janes-Adler star number.

Ja_Class
Janes-Adler class.

Ja_Max_Class
Janes-Adler maximum class.

Ja_Richness
Janes-Adler richness class.

Ja_E_BV
Janes-Adler E(B-V).

Ref_Ja_E_BV
Janes-Adler E(B-V) reference.

Ja_BV_Turnoff
Janes-Adler B-V turn off.

Ref_Ja_BV_Turnoff
Janes-Adler BV turnoff reference.

Ly_Tr_Concent_Class
Trumpler concentration class '82.

Ly_Tr_Range_Class
Trumpler range class '82.

Ly_Tr_Richness_Class
Trumpler richness class '82.

Ly_Tr_Nebulosity
Trumpler Nebulosity '82.

Ly_Member_Stars
Number of member stars '82.

Ly_Angular_Diameter
Angular diameter '82 data.

Ly_Refs_Flag
1 if classified in references.

RadVel_Weight
Weights for radial velocity.

RadVel
Radial velocity (520), in km/s.

RadVel_Weight_Class
Weight class for radial velocity.

Ref_Radvel1
Reference 1 for radial velocity.

Ref_Radvel2
Reference 2 for radial velocity.

Ref_Radvel3
Reference 3 for radial velocity.

Ref_Radvel4
Reference 4 for radial velocity.

Ref_Radvel5
Reference 5 for radial velocity.

Basel_Spect_Code
Basel spectral type for hottest star.

Basel_Color_Type
Basel color type for bluest star.

Neg_RA_Tracer
Tracer, -RA, 1950.

Neg_LII_Tracer
Tracer, -longitude.

Neg_Seq_Num_Tracer
Tracer, -number in sequence.

Pos_RA_Tracer
Tracer, +RA, 1950.

Pos_LII_Tracer
Tracer, +longitude.

Pos_Seq_Num_Tracer
Tracer, +number in sequence.

Jdl_Distance
JDL distance in pc.

Jdl_Distance_Weight
JDL distance weight class.

Jdl_Turnoff_Color
JDL turn-off color.

Jdl_Age
JDL derived age.

Jdl_Age_Weight
JDL age weight class.

Jdl_Reddening
JDL reddening.

Jdl_Reddening_Flag
V if reddening varies.

Jdl_Reddening_Weight
JDL reddening weight class.

Ref_Jdl1
JDL reference 1.

Ref_Jdl2
JDL reference 2.

Ref_Jdl3
JDL reference 3.

Ref_Jdl4
JDL reference 4.

Ref_Jdl5
JDL reference 5.

Ref_Jdl6
JDL reference 6.

Class
BROWSE classification type. The classification is based on the `Type` parameter, if one is available.


Contact Person

Questions regarding the LYNGACLUST database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: 8-Nov-2004