! Proposal 6281, submission 1
! PI: WESTPHAL, JAMES
! Received Sun Apr  9 20:58:34 EDT 1995
! From: spe@hellas.gps.caltech.edu
Proposal_Information

   Title:               PLANETARY NEBULAE NUCLEI PHOTOMETRY (WC04): CYCLE 5
   Proposal_Category:   GTO/WFC
   Scientific_Category: STELLAR ASTROPHYSICS
   Cycle:               5


Investigators

   PI_name:             WESTPHAL, JAMES
   PI_Institution:      CALTECH
   CoI_Name:            Code, Arthur D.
   CoI_Institution:     Univ of Wisconsin Washburn Observatory
   Contact:             Westphal


Questions

   Observing_Description:
   Real_Time_Justification:
   Calibration_Justification:
   Additional_Comments: 


Abstract:               Accurate observations or even detection of the central stars of the
                        highest excitation Planetary Nebula are difficult because of the faintness of
                        the central star relative to the nebular background. It is believed that these
                        PN nuclear stars have temperatures in excess of 100000 degrees Kelvin and the
                        large flux in the far ultraviolet produces a nebular surface brightness that
                        overwhelms the stellar radiation in the visual when resolution is seeing
                        limited. Also since these stars are believed to evolve from the red giant phase
                        at constant luminosity they are fainter in the visual than cooler PNN's. The
                        WF/PC spatial resolution will enhance the contrast by the order of 100 while an
                        additional enhancement will be achieved by observing in the UV.  This program
                        should result in providing sufficient photometric data to determine the nature
                        of these hot central stars. The UV photometry provides a means of determining
                        the interstellar extinction of the central star which is crucial to the
                        determination of the flux and stellar temperature.   The targets/filters are:
                        NGC 7027/F185W/F218W/F547M, ME2-1 and
                        IC2165/F185W/F218W/F255W/F336W/F439W/F547M


Fixed_Targets
!
!   Target_Number:       1
!   Target_Name:         NGC7027
!   Alternate_Names:     
!   Description:         ISM,PLANETARY NEBULA,NUCLEUS,
!   Position:            RA=21H 7M 1.7S +/- 0.100S,
!                        DEC= 42D 14' 10.0" +/-  1.00"
!   Equinox:             J2000
!   Epoch:               
!   Rv_or_z:             
!   RA_PM:               0.0
!   Dec_PM:              0.0
!   Annual_Parallax:     0.0
!   Flux:                
!   Comments:            PLANETARY NEB NUCLEUS
!
!   Target_Number:       2
!   Target_Name:         ME2-1
!   Alternate_Names:     342 +27.1
!   Description:         ISM,PLANETARY NEBULA,NUCLEUS,
!   Position:            RA=15H 22M 18.2S +/- 0.100S,
!                        DEC= -23D 37' 40.0" +/-  1.00"
!   Equinox:             J2000
!   Epoch:               
!   Rv_or_z:             
!   RA_PM:               0.0
!   Dec_PM:              0.0
!   Annual_Parallax:     0.0
!   Flux:                
!   Comments:            PLANETARY NEB NUCLEUS
!
   Target_Number:       3
   Target_Name:         IC2165
   Alternate_Names:     
   Description:         ISM,PLANETARY NEBULA,NUCLEUS,
   Position:            RA=6H 21M 42.6S +/- 0.100S,
                        DEC= -12D 59' 14.0" +/-  1.00"
   Equinox:             J2000
   Epoch:               
   Rv_or_z:             
   RA_PM:               0.0
   Dec_PM:              0.0
   Annual_Parallax:     0.0
   Flux:                
   Comments:            PLANETARY NEB NUCLEUS


Solar_System_Targets


Generic_Targets


Scan_Data


Visits

Visit_Number:           01
Visit_Requirements:     
On_Hold_Comments:       

   ! From Line 21
   Exposure_number:     10
   Target_Name:         IC2165
   Config:              WFPC2
   Opmode:              IMAGE
   Aperture:            WFALL
   Sp_Element:          F185W
   Wavelength:          
   Optional_Parameters: CR-SPLIT=NO
   Number_of_iterations:1
   Time_Per_Exposure:   350S
   Special_Requirements:
   Comments:            

   ! From Line 22
   Exposure_number:     20
   Target_Name:         IC2165
   Config:              WFPC2
   Opmode:              IMAGE
   Aperture:            WFALL
   Sp_Element:          F218W
   Wavelength:          
   Optional_Parameters: CR-SPLIT=NO
   Number_of_iterations:1
   Time_Per_Exposure:   230S
   Special_Requirements:SAME POS AS 10
   Comments:            

   ! From Line 23
   Exposure_number:     30
   Target_Name:         IC2165
   Config:              WFPC2
   Opmode:              IMAGE
   Aperture:            WFALL
   Sp_Element:          F255W
   Wavelength:          
   Optional_Parameters: CR-SPLIT=NO
   Number_of_iterations:1
   Time_Per_Exposure:   200S
   Special_Requirements:SAME POS AS 10
   Comments:            

   ! From Line 24
   Exposure_number:     40
   Target_Name:         IC2165
   Config:              WFPC2
   Opmode:              IMAGE
   Aperture:            WFALL
   Sp_Element:          F336W
   Wavelength:          
   Optional_Parameters: CR-SPLIT=NO
   Number_of_iterations:1
   Time_Per_Exposure:   3M
   Special_Requirements:SAME POS AS 10
   Comments:            

   ! From Line 25
   Exposure_number:     50
   Target_Name:         IC2165
   Config:              WFPC2
   Opmode:              IMAGE
   Aperture:            WFALL
   Sp_Element:          F439W
   Wavelength:          
   Optional_Parameters: CR-SPLIT=NO
   Number_of_iterations:1
   Time_Per_Exposure:   1M
   Special_Requirements:SAME POS AS 10
   Comments:            

   ! From Line 26
   Exposure_number:     60
   Target_Name:         IC2165
   Config:              WFPC2
   Opmode:              IMAGE
   Aperture:            WFALL
   Sp_Element:          F547M
   Wavelength:          
   Optional_Parameters: CR-SPLIT=NO
   Number_of_iterations:1
   Time_Per_Exposure:   1M
   Special_Requirements:SAME POS AS 10
   Comments:            


Data_Distribution

   Medium:              8MM
   Blocking_Factor:     10
   Ship_To:             PI_Address
   Ship_Via:            UPS
   Recipient_Email: