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SIMBAD: add extra user agent #3529

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0f9ae5b
maint: adapt outputs to database current state
ManonMarchand Feb 12, 2026
780ec6f
feat: add possibility to declare more user agents in SIMBAD
ManonMarchand Feb 12, 2026
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5 changes: 5 additions & 0 deletions CHANGES.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,11 @@ linelists
- General tools for both CDMS/JPL moved to linelists.core [#3456]
- Added jplspec, moved from its previous location (astroquery.jplspec to astroquery.linelists.jplspec) [#3455]

simbad
~~~~~~

- Add the possibility to declare more user agents to ``SimbadClass`` [#3529]
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@bsipocz bsipocz Feb 12, 2026

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Suggested change
- Add the possibility to declare more user agents to ``SimbadClass`` [#3529]
- Add the possibility to declare more information in the HTTP User-Agent header in ``SimbadClass`` [#3529]


xmatch
^^^^^^

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27 changes: 13 additions & 14 deletions astroquery/simbad/core.py
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Expand Up @@ -113,8 +113,8 @@ class SimbadClass(BaseVOQuery):
"""
SIMBAD_URL = 'https://' + conf.server + '/simbad/sim-script'

def __init__(self, ROW_LIMIT=None, *, timeout=None):
super().__init__()
def __init__(self, ROW_LIMIT=None, *, timeout=None, extra_user_agents=None):
super().__init__(extra_user_agents=extra_user_agents)
# to create the TAPService
self._server = conf.server
self._tap = None
Expand Down Expand Up @@ -792,15 +792,13 @@ def query_region(self, coordinates, radius=2*u.arcmin, *,
... criteria="otype = 'Galaxy..' AND galdim_majaxis>8.5") # doctest: +REMOTE_DATA
>>> result.sort("galdim_majaxis", reverse=True) # doctest: +REMOTE_DATA
>>> result["main_id", "otype", "galdim_majaxis"] # doctest: +REMOTE_DATA
<Table length=5>
<Table length=3>
main_id otype galdim_majaxis
arcmin
object object float32
------------ ------ --------------
LEDA 41362 GiC 11.0
M 86 GiG 10.47
LEDA 40917 AG? 10.3
M 87 AGN 9.12
M 86 GiG 9.33669
NGC 4438 LIN 8.91

Notes
Expand Down Expand Up @@ -899,17 +897,18 @@ def query_catalog(self, catalog, *, criteria=None, get_query_payload=False,
>>> from astroquery.simbad import Simbad
>>> simbad = Simbad()
>>> simbad.ROW_LIMIT = 5
>>> simbad.query_catalog("GSC", criteria="pmra > 50 and pmra < 100") # doctest: +REMOTE_DATA
>>> result = simbad.query_catalog("GSC", criteria="pmra > 50 and pmra < 100") # doctest: +REMOTE_DATA
>>> result # doctest: +REMOTE_DATA
<Table length=5>
main_id ra ... coo_bibcode catalog_id
deg ...
object float64 ... object object
--------------- --------------- ... ------------------- ---------------
HD 26053 61.84326890626 ... 2020yCat.1350....0G GSC 04725-00973
TYC 8454-1081-1 345.11163189562 ... 2020yCat.1350....0G GSC 08454-01081
HD 26053 61.84326890626 ... 2020yCat.1350....0G GSC 04725-00973
HD 10158 24.86286094434 ... 2020yCat.1350....0G GSC 00624-00340
CD-22 1862 73.17988827324 ... 2020yCat.1350....0G GSC 05911-00222
BD+02 4434 327.90220788982 ... 2020yCat.1350....0G GSC 00548-00194
CD-22 1862 73.17988827324 ... 2020yCat.1350....0G GSC 05911-00222

Notes
-----
Expand Down Expand Up @@ -978,11 +977,11 @@ def query_hierarchy(self, name, hierarchy, *,
... hierarchy="parents") # doctest: +REMOTE_DATA
>>> parent[["main_id", "ra", "dec"]] # doctest: +REMOTE_DATA
<Table length=1>
main_id ra dec
deg deg
object float64 float64
--------- ------- -------
NGC 6705 282.766 -6.272
main_id ra dec
deg deg
object float64 float64
--------- ----------------- ------------------
NGC 6705 282.7654166666666 -6.271666666666667
"""
top, columns, joins, instance_criteria = self._get_query_parameters()

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2 changes: 1 addition & 1 deletion astroquery/simbad/tests/test_simbad_remote.py
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Expand Up @@ -232,7 +232,7 @@ def test_add_votable_fields(self):
simbad_instance.columns_in_output = []
# mixed columns bundles and tables
simbad_instance.add_votable_fields("flux", "velocity", "update_date")
assert len(simbad_instance.columns_in_output) == 19
assert len(simbad_instance.columns_in_output) == 20

# add fluxes by their filter names
simbad_instance = Simbad()
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12 changes: 12 additions & 0 deletions docs/simbad/simbad.rst
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Expand Up @@ -864,6 +864,18 @@ your cache:
If this function is unavailable, upgrade your version of astroquery.
The ``clear_cache`` function was introduced in version 0.4.7.dev8479.

Make your requests identifiable
===============================

To declare who you are to the SIMBAD's servers, add an extra **user agent** to your
SIMBAD instance:
Comment on lines +870 to +871
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@bsipocz bsipocz Feb 12, 2026

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Maybe add one more sentence why anyone want to do this?


.. code-block:: python

>>> from astroquery.simbad import Simbad
>>> simbad = Simbad(extra_user_agents="you")


Citation
========

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