diff --git a/kosmorro/__main__.py b/kosmorro/__main__.py
index d0f54f8..5155cd5 100644
--- a/kosmorro/__main__.py
+++ b/kosmorro/__main__.py
@@ -355,7 +355,7 @@ def get_args(output_formats: [str]):
         dest="show_graph",
         action="store_false",
         help=_(
-            "Do not generate a graph to represent the rise and set times in the PDF format."
+            "Do not generate a graph to represent the rise and set times in the LaTeX or PDF file."
         ),
     )
     parser.add_argument(
diff --git a/kosmorro/assets/latex/template.tex b/kosmorro/assets/latex/template.tex
index 5daec4c..d1acc47 100644
--- a/kosmorro/assets/latex/template.tex
+++ b/kosmorro/assets/latex/template.tex
@@ -1,13 +1,5 @@
 \documentclass[a4paper,12pt]{article}
 
-% This file has been generated with Kosmorro version +++KOSMORRO-VERSION+++ (https://kosmorro.space) on +++CURRENT-DATE+++.
-% Feel free to modify it at your needs.
-%
-% To compile this file, you will need to install LaTeX distribution like:
-%
-% - TeXLive (https://tug.org/texlive/) on Windows and Linux
-% - MacTeX (https://www.tug.org/mactex/) on macOS
-
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage[margin=25mm]{geometry}
diff --git a/kosmorro/dumper.py b/kosmorro/dumper.py
index 78f6c98..0496a05 100644
--- a/kosmorro/dumper.py
+++ b/kosmorro/dumper.py
@@ -43,9 +43,9 @@ from .utils import KOSMORRO_VERSION
 
 
 class Dumper(ABC):
-    ephemerides: [AsterEphemerides]
+    ephemerides: list[AsterEphemerides]
     moon_phase: MoonPhase
-    events: [Event]
+    events: list[Event]
     date: datetime.date
     timezone: int
     with_colors: bool
@@ -53,9 +53,9 @@ class Dumper(ABC):
 
     def __init__(
         self,
-        ephemerides: [AsterEphemerides],
+        ephemerides: list[AsterEphemerides],
         moon_phase: MoonPhase,
-        events: [Event],
+        events: list[Event],
         date: datetime.date,
         timezone: int,
         with_colors: bool,
@@ -281,7 +281,7 @@ class LatexDumper(Dumper):
 
         document = template
 
-        if self.ephemerides is None:
+        if len(self.ephemerides) == 0:
             document = self._remove_section(document, "ephemerides")
 
         if len(self.events) == 0:
diff --git a/kosmorro/locales/messages.pot b/kosmorro/locales/messages.pot
index 4e568c4..77a28d6 100644
--- a/kosmorro/locales/messages.pot
+++ b/kosmorro/locales/messages.pot
@@ -1,118 +1,145 @@
 # Translations template for PROJECT.
-# Copyright (C) 2023 ORGANIZATION
+# Copyright (C) 2025 ORGANIZATION
 # This file is distributed under the same license as the PROJECT project.
-# FIRST AUTHOR <EMAIL@ADDRESS>, 2023.
+# FIRST AUTHOR <EMAIL@ADDRESS>, 2025.
 #
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-05-24 13:41+0200\n"
+"POT-Creation-Date: 2025-10-19 16:22+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.12.1\n"
+"Generated-By: Babel 2.17.0\n"
 
-#: kosmorro/__main__.py:82
+#: kosmorro/__main__.py:89
 msgid ""
 "Save the planet and paper!\n"
 "Consider printing your PDF document only if really necessary, and use the"
 " other side of the sheet."
 msgstr ""
 
-#: kosmorro/__main__.py:90
+#: kosmorro/__main__.py:97
 msgid ""
 "PDF output will not contain the ephemerides, because you didn't provide "
 "the observation coordinates."
 msgstr ""
 
-#: kosmorro/__main__.py:142
+#: kosmorro/__main__.py:115
+msgid ""
+"Environment variable KOSMORRO_TIMEZONE is deprecated. Use TZ instead, "
+"which is more standard."
+msgstr ""
+
+#: kosmorro/__main__.py:124
+#, python-brace-format
+msgid "Unknown timezone: {timezone}"
+msgstr ""
+
+#: kosmorro/__main__.py:167
+#, python-brace-format
 msgid "The file could not be saved in \"{path}\": {error}"
 msgstr ""
 
-#: kosmorro/__main__.py:156
+#: kosmorro/__main__.py:181
 msgid "Please provide a file path to export in this format (--output)."
 msgstr ""
 
-#: kosmorro/__main__.py:187
+#: kosmorro/__main__.py:213
+#, python-brace-format
 msgid "Moon phase can only be computed between {min_date} and {max_date}"
 msgstr ""
 
-#: kosmorro/__main__.py:238
+#: kosmorro/__main__.py:264
+#, python-brace-format
 msgid "Running on Python {python_version} with Kosmorrolib v{kosmorrolib_version}"
 msgstr ""
 
-#: kosmorro/__main__.py:251
+#: kosmorro/__main__.py:277
 msgid ""
 "Compute the ephemerides and the events for a given date and a given "
 "position on Earth."
 msgstr ""
 
-#: kosmorro/__main__.py:254
+#: kosmorro/__main__.py:280
 msgid ""
 "By default, only the events will be computed for today.\n"
 "To compute also the ephemerides, latitude and longitude arguments are "
 "needed."
 msgstr ""
 
-#: kosmorro/__main__.py:267
+#: kosmorro/__main__.py:292
 msgid "Show the program version"
 msgstr ""
 
-#: kosmorro/__main__.py:275
+#: kosmorro/__main__.py:301
 msgid ""
 "The format to output the information to. If not provided, the output "
 "format will be inferred from the file extension of the output file."
 msgstr ""
 
-#: kosmorro/__main__.py:285
+#: kosmorro/__main__.py:311
+#, python-brace-format
 msgid ""
 "The observer's position on Earth, in the \"{latitude},{longitude}\" "
 "format. Can also be set in the KOSMORRO_POSITION environment variable."
 msgstr ""
 
-#: kosmorro/__main__.py:295
+#: kosmorro/__main__.py:321
 msgid ""
 "The date for which the ephemerides must be calculated. Can be in the "
 "YYYY-MM-DD format or an interval in the \"[+-]YyMmDd\" format (with Y, M,"
 " and D numbers). Defaults to current date."
 msgstr ""
 
-#: kosmorro/__main__.py:306
+#: kosmorro/__main__.py:332
 msgid ""
-"The timezone to display the hours in (e.g. 2 for UTC+2 or -3 for UTC-3). "
-"Can also be set in the KOSMORRO_TIMEZONE environment variable."
+"The timezone to use to display the hours. It can be either a number (e.g."
+" 1 for UTC+1) or a timezone name (e.g. Europe/Paris). See "
+"https://en.wikipedia.org/wiki/List_of_tz_database_time_zones to find your"
+" timezone. Can also be set in the TZ environment variable."
 msgstr ""
 
-#: kosmorro/__main__.py:315
+#: kosmorro/__main__.py:341
 msgid "Disable the colors in the console."
 msgstr ""
 
-#: kosmorro/__main__.py:322
+#: kosmorro/__main__.py:349
 msgid ""
 "A file to export the output to. If not given, the standard output is "
 "used. This argument is needed for PDF format."
 msgstr ""
 
-#: kosmorro/__main__.py:331
+#: kosmorro/__main__.py:358
 msgid ""
-"Do not generate a graph to represent the rise and set times in the PDF "
-"format."
+"Do not generate a graph to represent the rise and set times in the LaTeX "
+"or PDF file."
 msgstr ""
 
-#: kosmorro/__main__.py:339
+#: kosmorro/__main__.py:365
 msgid "Show debugging messages"
 msgstr ""
 
+#: kosmorro/__main__.py:373
+msgid "Print a script allowing completion for your shell"
+msgstr ""
+
+#: kosmorro/__main__.py:383
+msgid "No completion script available for this shell."
+msgstr ""
+
 #: kosmorro/date.py:17
+#, python-brace-format
 msgid "The date {date} is not valid: {error}"
 msgstr ""
 
-#: kosmorro/date.py:39
+#: kosmorro/date.py:40
+#, python-brace-format
 msgid ""
 "The date {date} does not match the required YYYY-MM-DD format or the "
 "offset format."
@@ -126,23 +153,24 @@ msgstr ""
 msgid "Note: All the hours are given in UTC."
 msgstr ""
 
-#: kosmorro/dumper.py:151
+#: kosmorro/dumper.py:152
+#, python-brace-format
 msgid "Note: All the hours are given in the UTC{offset} timezone."
 msgstr ""
 
-#: kosmorro/dumper.py:205 kosmorro/dumper.py:339
+#: kosmorro/dumper.py:205 kosmorro/dumper.py:336
 msgid "Object"
 msgstr ""
 
-#: kosmorro/dumper.py:206 kosmorro/dumper.py:340
+#: kosmorro/dumper.py:206 kosmorro/dumper.py:337
 msgid "Rise time"
 msgstr ""
 
-#: kosmorro/dumper.py:207 kosmorro/dumper.py:342
+#: kosmorro/dumper.py:207 kosmorro/dumper.py:339
 msgid "Culmination time"
 msgstr ""
 
-#: kosmorro/dumper.py:208 kosmorro/dumper.py:344
+#: kosmorro/dumper.py:208 kosmorro/dumper.py:341
 msgid "Set time"
 msgstr ""
 
@@ -150,44 +178,46 @@ msgstr ""
 msgid "Moon phase is unavailable for this date."
 msgstr ""
 
-#: kosmorro/dumper.py:238 kosmorro/dumper.py:348
-msgid "Moon phase:"
-msgstr ""
-
-#: kosmorro/dumper.py:242
+#: kosmorro/dumper.py:240
+#, python-brace-format
 msgid "{next_moon_phase} on {next_moon_phase_date} at {next_moon_phase_time}"
 msgstr ""
 
-#: kosmorro/dumper.py:312
+#: kosmorro/dumper.py:309
 msgid "Overview of your sky"
 msgstr ""
 
-#: kosmorro/dumper.py:320
+#: kosmorro/dumper.py:318
+#, python-brace-format
 msgid ""
 "This document summarizes the ephemerides and the events of {date}. It "
 "aims to help you to prepare your observation session. All the hours are "
 "given in {timezone}."
 msgstr ""
 
-#: kosmorro/dumper.py:330
+#: kosmorro/dumper.py:328
 msgid ""
 "Don't forget to check the weather forecast before you go out with your "
 "equipment."
 msgstr ""
 
-#: kosmorro/dumper.py:337
+#: kosmorro/dumper.py:334
 msgid "Ephemerides of the day"
 msgstr ""
 
-#: kosmorro/dumper.py:346
+#: kosmorro/dumper.py:343
 msgid "hours"
 msgstr ""
 
-#: kosmorro/dumper.py:353
+#: kosmorro/dumper.py:345
+msgid "Moon phase:"
+msgstr ""
+
+#: kosmorro/dumper.py:350
 msgid "Expected events"
 msgstr ""
 
-#: kosmorro/dumper.py:493
+#: kosmorro/dumper.py:491
 msgid ""
 "Building PDF was not possible, because some dependencies are not "
 "installed.\n"
@@ -195,7 +225,7 @@ msgid ""
 "pdf/ for more information."
 msgstr ""
 
-#: kosmorro/dumper.py:542
+#: kosmorro/dumper.py:540
 #, python-format
 msgid ""
 "An error occurred during the compilation of the PDF.\n"
@@ -203,11 +233,13 @@ msgid ""
 "share the content of the log file at /tmp/kosmorro-%s.log"
 msgstr ""
 
-#: kosmorro/exceptions.py:35
+#: kosmorro/exceptions.py:36
+#, python-brace-format
 msgid "The date must be between {minimum_date} and {maximum_date}"
 msgstr ""
 
-#: kosmorro/exceptions.py:48
+#: kosmorro/exceptions.py:49
+#, python-brace-format
 msgid ""
 "Invalid output format: {output_format}. Output file must end with: "
 "{accepted_extensions}"
@@ -218,129 +250,164 @@ msgstr ""
 msgid "The given position (%s) is not valid."
 msgstr ""
 
-#: kosmorro/geolocation.py:29
+#: kosmorro/geolocation.py:30
 msgid "The given Plus Code seems to be a short code, please provide a full code."
 msgstr ""
 
-#: kosmorro/i18n/strings.py:11
+#: kosmorro/i18n/strings.py:21
 #, python-format
 msgid "%s is in opposition"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:12
+#: kosmorro/i18n/strings.py:26
 #, python-format
 msgid "%s and %s are in conjunction"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:13
+#: kosmorro/i18n/strings.py:35
 #, python-format
 msgid "%s occults %s"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:15
+#: kosmorro/i18n/strings.py:44
 #, python-format
 msgid "Elongation of %s is maximal"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:18
+#: kosmorro/i18n/strings.py:50
 #, python-format
 msgid "%s is at its periapsis"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:19
+#: kosmorro/i18n/strings.py:55
 #, python-format
 msgid "%s is at its apoapsis"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:35
+#: kosmorro/i18n/strings.py:61
+msgid "March equinox"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:63
+msgid "June solstice"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:65
+msgid "September equinox"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:67
+msgid "December solstice"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:73
+#, python-format
+msgid "Total lunar eclipse until %(hour)s"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:78
+#, python-format
+msgid "Penumbral lunar eclipse until %(hour)s"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:83
+#, python-format
+msgid "Partial lunar eclipse until %(hour)s"
+msgstr ""
+
+#: kosmorro/i18n/strings.py:99
 msgid "New Moon"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:36
+#: kosmorro/i18n/strings.py:100
 msgid "Waxing Crescent"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:37
+#: kosmorro/i18n/strings.py:101
 msgid "First Quarter"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:38
+#: kosmorro/i18n/strings.py:102
 msgid "Waxing Gibbous"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:39
+#: kosmorro/i18n/strings.py:103
 msgid "Full Moon"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:40
+#: kosmorro/i18n/strings.py:104
 msgid "Waning Gibbous"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:41
+#: kosmorro/i18n/strings.py:105
 msgid "Last Quarter"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:42
+#: kosmorro/i18n/strings.py:106
 msgid "Waning Crescent"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:53
+#: kosmorro/i18n/strings.py:117
 msgid "Sun"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:54
+#: kosmorro/i18n/strings.py:118
 msgid "Moon"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:55
+#: kosmorro/i18n/strings.py:119
 msgid "Mercury"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:56
+#: kosmorro/i18n/strings.py:120
 msgid "Venus"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:57
+#: kosmorro/i18n/strings.py:121
 msgid "Earth"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:58
+#: kosmorro/i18n/strings.py:122
 msgid "Mars"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:59
+#: kosmorro/i18n/strings.py:123
 msgid "Jupiter"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:60
+#: kosmorro/i18n/strings.py:124
 msgid "Saturn"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:61
+#: kosmorro/i18n/strings.py:125
 msgid "Uranus"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:62
+#: kosmorro/i18n/strings.py:126
 msgid "Neptune"
 msgstr ""
 
-#: kosmorro/i18n/strings.py:63
+#: kosmorro/i18n/strings.py:127
 msgid "Pluto"
 msgstr ""
 
 #: kosmorro/i18n/utils.py:27
+#, python-brace-format
 msgid "{day_of_week} {month} {day_number}, {year}"
 msgstr ""
 
 #: kosmorro/i18n/utils.py:30
+#, python-brace-format
 msgid "{month} {day_number}, {hours}:{minutes}"
 msgstr ""
 
 #: kosmorro/i18n/utils.py:33
+#, python-brace-format
 msgid "{month} {day_number}, {year}"
 msgstr ""
 
 #: kosmorro/i18n/utils.py:36
+#, python-brace-format
 msgid "{hours}:{minutes}"
 msgstr ""
 
diff --git a/tests/general.py b/tests/general.py
index 10d270d..3ef6f34 100644
--- a/tests/general.py
+++ b/tests/general.py
@@ -74,7 +74,7 @@ options:
                         standard output is used. This argument is needed for
                         PDF format.
   --no-graph            Do not generate a graph to represent the rise and set
-                        times in the PDF format.
+                        times in the LaTeX or PDF file.
   --debug               Show debugging messages
   --completion COMPLETION
                         Print a script allowing completion for your shell
@@ -86,7 +86,7 @@ ephemerides, latitude and longitude arguments are needed.
         else:
             assert (
                 result.stdout
-                == """usage: kosmorro [-h] [--version] [--format {txt,json,tex}]
+                == """usage: kosmorro [-h] [--version] [--format {txt,json,pdf,tex}]
                 [--position POSITION] [--date DATE] [--timezone TIMEZONE]
                 [--no-colors] [--output OUTPUT] [--no-graph] [--debug]
                 [--completion COMPLETION]
@@ -97,7 +97,7 @@ on Earth.
 options:
   -h, --help            show this help message and exit
   --version, -v         Show the program version
-  --format, -f {txt,json,tex}
+  --format, -f {txt,json,pdf,tex}
                         The format to output the information to. If not
                         provided, the output format will be inferred from the
                         file extension of the output file.
@@ -117,9 +117,10 @@ options:
                         Can also be set in the TZ environment variable.
   --no-colors           Disable the colors in the console.
   --output, -o OUTPUT   A file to export the output to. If not given, the
-                        standard output is used.
+                        standard output is used. This argument is needed for
+                        PDF format.
   --no-graph            Do not generate a graph to represent the rise and set
-                        times in the LaTeX file.
+                        times in the LaTeX or PDF file.
   --debug               Show debugging messages
   --completion COMPLETION
                         Print a script allowing completion for your shell