Proposal #700

Proposer	(3126) Richard "Brian" Potter (rbpotter64@gmail.com) obscode: PRV
Assigned To	(3663) Dirk Terrell
Date Submitted	June 11, 2026
Status	Allocated
Priority	Normal
Proposal	Comparative photometric study of classical Z Cam stars and IW And-type systems using AAVSOnet observations I have previously participated in Mike Simonsen's ZCampaign and am interested in continuing this work. In particular I would like to observe a small group of known Z Cams (outbursts and standstills) and IW And stars (outburst → standstill → brightening → drop → repeat) to compare and contrast their behaviors. My request is for nightly observations of the targets listed below in BVRI, ideally through the end of 2027. I will supplement this with targeted high-cadence runs either from my personal observatory or iTelescope (depending on observability and weather conditions) when something interesting starts happening.

Targets

Target Name	RA (H.HH)	Dec (D.DD)	Magnitude	Observation Frequency	Expiration Date	Proprietary Term
Z Cam	8.420328	73.11086	14.5–10.0	1	Dec. 31, 2027	No
IW And	1.019141	43.39050	18.6–13.6	1	Dec. 31, 2027	No
V0513 Cas	0.304145	66.30381	18.9–14.9	1	Dec. 31, 2027	No
ST Cha	10.787669	-79.46858	17.3–13.5	1	Dec. 31, 2027	No
RX And	1.076539	41.29939	14.8–10.3	1	Dec. 31, 2027	No
AH Her	16.736114	25.25053	14.9–10.8	1	Dec. 31, 2027	No
AT Cnc	8.476925	25.33417	15.8–12.5	1	Dec. 31, 2027	No
HL CMa	6.754783	-16.85964	15.0–10.7	1	Dec. 31, 2027	No

Plans currently in place

dso35/AAVSO_P700_PRV_AUTO.csv

# $Id: AAVSO_P700_PRV_AUTO.csv 5893 2026-07-04 13:17:54Z MZK $
#PROPOSAL=700
#REQUESTER=PRV,,vphot
#target,hh,mm,ss.ss,dd,mm,ss.s,desc,priority,monitor,maxX,nrepeat,bin,[filter,exposure,nexp],[filter,exposure,nexp],,,,[filter,exposure,nexp]
IW_And,1,1,8.91,43,23,25.8,IW_And,50,1,2,1,1,B,60,3,V,30,3,SR,30,3,SI,30,3,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
V0513_Cas,0,18,14.92,66,18,13.72,V0513_Cas,50,1,2,1,1,B,60,3,V,30,3,SR,30,3,SI,30,3,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00

oc61/AAVSO_P700_PRV_AUTO.csv

# $Id: AAVSO_P700_PRV_AUTO.csv 5895 2026-07-04 13:23:11Z MZK $
#PROPOSAL=700
#REQUESTER=PRV,,vphot
#target,hh,mm,ss.ss,dd,mm,ss.s,desc,priority,monitor,maxX,nrepeat,bin,[filter,exposure,nexp],[filter,exposure,nexp],,,,[filter,exposure,nexp]
ST_Cha,10,47,15.61,-79,28,6.89,ST_Cha,50,1,2,1,4,B,60,3,V,30,3,SR,30,3,SI,30,3,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00

bsm_s/AAVSO_P700_PRV_AUTO.csv

# $Id: AAVSO_P700_PRV_AUTO.csv 5879 2026-06-22 17:28:46Z MZK $
#PROPOSAL=700
#REQUESTER=PRV,,vphot
#target,hh,mm,ss.ss,dd,mm,ss.s,desc,priority,monitor,maxX,nrepeat,bin,[filter,exposure,nexp],[filter,exposure,nexp],,,,[filter,exposure,nexp]
ST_Cha,10,47,15.61,-79,28,6.89,ST_Cha,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
HL_CMa,6,45,17.22,-16,51,34.7,HL_CMa,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00

bsm_nm/AAVSO_P700_PRV_AUTO.csv

# $Id: AAVSO_P700_PRV_AUTO.csv 5877 2026-06-22 14:18:16Z MZK $
#PROPOSAL=700
#REQUESTER=PRV,,vphot
#target,hh,mm,ss.ss,dd,mm,ss.s,desc,priority,monitor,maxX,nrepeat,bin,[filter,exposure,nexp],[filter,exposure,nexp],,,,[filter,exposure,nexp]
Z_Cam,8,25,13.18,73,6,39.10,Z_Cam,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
IW_And,1,1,8.91,43,23,25.80,IW_And,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
V0513_Cas,0,18,14.92,66,18,13.72,V0513_Cas,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
ST_Cha,10,47,15.61,-79,28,6.89,ST_Cha,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
RX_And,1,4,35.54,41,17,57.80,RX_And,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
AH_Her,16,44,10.01,25,15,1.91,AH_Her,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
AT_Cnc,8,28,36.93,25,20,3.01,AT_Cnc,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00
HL_CMa,6,45,17.22,-16,51,34.70,HL_CMa,50,1,2,1,1,B,60,6,V,30,6,R,30,6,I,30,6,EarliestTime=2026-06-11T00:00:00,LatestTime=2027-12-31T00:00:00

Comments

(4726) Kenneth Menzies — June 22, 2026, 2:21 p.m.: committed to BSM_NM and BSM_S

Comments on this proposal are closed.