Template talk:Infobox nebula

Colors

-- 70.50.151.11 (talk) 22:10, 16 March 2014 (UTC)

• The usual color of reflection nebulae is blue [1], so use a blue infobox
• The usual color of emission nebuale is pink [2] so use pinkish infobox
  • HII regions are pink [3]
• HI regions are radio nebulae [4]

Central star characteristics

@Netoholic, StringTheory11, and Frietjes:

Weidmann et al. (2020) have compiled a catalogue of central stars for 620 planetary nebulae (< 20% of known planetary nebulae). Data files available at http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/640/A10 ("FTP" tab) list the following characteristics:

1. equatorial coordinates (don't always match the nebula center);
2. spectral type, with bibcode reference;
3. second spectral type, with bibcode reference (listed if there is a large discrepancy between the most current spectral type and an older one);
4. logarithm of surface gravity in cm/s², with bibcode reference (listed for 56.3% of stars);
5. logarithm of temperature in K and method by which temperature was determined, with bibcode reference (listed for 69.8% of stars);
6. logarithm of luminosity in L_☉, with bibcode reference (listed for 60.5% of stars);
7. apparent magnitude and filter band, with bibcode reference (listed for 74.4% of stars).

I propose that we expand {{infobox nebula}} with a new section "Central star" containing the following parameters (all optional):

1. |cs_name=;
2. |cs_ascension=,
3. |cs_declination= — these two only need to be filled in if different from the nebula center;
4. |cs_magnitude= — apparent magnitude;
5. |cs_magnitude_band= — filter band letter for apparent magnitude (displayed in the label);
6. |cs_spectral= — may list multiple types separated by commas in case there is disagreement between sources (but should not list the spectral type of a companion star);
7. |cs_luminosity= — in L_☉;
8. |cs_temperature= — in K;
9. |cs_surface_grav= — log₁₀ of cm/s².

An example for the Stingray Nebula:

Before:

Stingray Nebula

Emission nebula
Planetary nebula
Hubble Space Telescope photograph of the nebula (Credit: M. Bobrowsky and NASA)
Observation data: J2000 epoch
Right ascension	17h 16m 21.071s
Declination	−59° 29′ 23.64″
Distance	18×103 ly   (5.6×103 pc)
Apparent magnitude (V)	10.75
Apparent dimensions (V)	1″.6
Constellation	Ara
Physical characteristics
Radius	0.08 ly
Absolute magnitude (V)	−3.0
Designations	PN G331.3-12.1, Hen 3-1357

   

After:

Stingray Nebula

Emission nebula
Planetary nebula
Hubble Space Telescope photograph of the nebula (Credit: M. Bobrowsky and NASA)
Observation data: J2000 epoch
Right ascension	17h 16m 21.071s
Declination	−59° 29′ 23.64″
Distance	18×103 ly   (5.6×103 pc)
Apparent magnitude (V)	10.75
Apparent dimensions (V)	1″.6
Constellation	Ara
Physical characteristics
Radius	0.08 ly
Absolute magnitude (V)	−3.0
Designations	PN G331.3-12.1, Hen 3-1357
Central star
Designation	SAO 244567
Right ascension	17h 16m 21.1s
Declination	−59° 29′ 23.3″
Apparent magnitude (V)	9.50 ± 0.8
Spectral type	H-rich, sdO
Luminosity	316.2 L☉
Temperature	59,980 K
Surface gravity (log g)	6.00

— UnladenSwallow (talk) 10:55, 16 May 2021 (UTC); edited 00:37, 17 May 2021 (UTC) (changed parameter prefix from cc_ to cs_, added parameter cs_name)

Notes

References

• Support: sure, it makes sense to include information about that star. I think it should include a field for the star's designation(s). Praemonitus (talk) 13:08, 16 May 2021 (UTC)

I've added a new parameter |cs_name= per your suggestion. — UnladenSwallow (talk) 00:37, 17 May 2021 (UTC)

• Question to UnladenSwallow, is there a reason the parameters start with "cc_" rather than "cs_" for "central star"? -- Netoholic @ 17:49, 16 May 2021 (UTC)

@Netoholic: No, there's no reason at all. Thanks for catching that! Fixed. — UnladenSwallow (talk) 00:37, 17 May 2021 (UTC)

2nd concern, UnladenSwallow, if Weidmann et al. (2020) are the source identifying specific stars as central to these nebulae, I'm thinking Weidmann needs to be added as a citation to that fact within the infobox. Maybe within the new cs_name input? -- Netoholic @ 01:54, 17 May 2021 (UTC)

Galactic coordinates

@Netoholic, StringTheory11, and Frietjes: Could we please add galactic coordinates? Eric Kvaalen (talk) 11:17, 4 December 2021 (UTC)

@Netoholic, ST11, Frietjes, and Eric Kvaalen: Or a "Coordinates" field so that the {{Sky}} templates can be moved into the infoboxes, as is standard for the {{Coord}} template for terrestrial locations (e.g. {{Infobox settlement}}) and events (e.g. {{Infobox military conflict}})? —DocWatson42 (talk) 09:21, 4 July 2023 (UTC)

DocWatson42, after which existing line do you want it? after |class=? Frietjes (talk) 15:36, 5 July 2023 (UTC)

Sure, though I don't actually have a preference beyond that it be added and that the placement make sense. Oh, and that if you or someone else would please be so kind, to do the same with any other appropriate that currently lack that field. —DocWatson42 (talk) 03:32, 6 July 2023 (UTC)

I created a section about this on the Wikipedia talk:WikiProject Astronomical objects page. —DocWatson42 (talk) 16:12, 6 August 2023 (UTC)

Issue with distance parameters

The dist_ly and dist_pc parameters should be reconsidered as they don't allow for values in kly or kpc (1400 ly and 1.4 kly are not the same thing) and are also leading to formatting errors in multiple articles. ReconFX (talk) 18:38, 19 July 2022 (UTC)